Search
Find a vulnerability
Search criteria
78 vulnerabilities by thekelleys
CVE-2026-12969 (GCVE-0-2026-12969)
Vulnerability from nvd – Published: 2026-06-23 13:28 – Updated: 2026-08-31 11:48
VLAI
EPSS
VEX
Title
Dnsmasq: dnsmasq: out-of-bounds read in find_soa() due to missing extrabytes validation
Summary
An out-of-bounds read vulnerability exists in dnsmasq's find_soa() function in src/rfc1035.c. When parsing NS section records, extract_name() is called with extrabytes=0, failing to validate that 10 additional bytes exist for fixed-length DNS record fields. A remote attacker controlling a DNS zone can exploit this via a crafted NXDOMAIN response to cause a 10-byte heap out-of-bounds read, potentially accessing stale data from prior transactions.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-23 15:02 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-12969 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2491663 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-05-10 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-12969",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-23T15:02:23.863843Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-23T15:04:49.622Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unaffected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "unaffected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "unaffected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "unaffected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "unaffected",
"packageName": "openshift/ose-rhel-coreos-8",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "unaffected",
"packageName": "openshift/ose-rhel-coreos-9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank dolitli for reporting this issue."
}
],
"datePublic": "2026-05-10T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "An out-of-bounds read vulnerability exists in dnsmasq\u0027s find_soa() function in src/rfc1035.c. When parsing NS section records, extract_name() is called with extrabytes=0, failing to validate that 10 additional bytes exist for fixed-length DNS record fields. A remote attacker controlling a DNS zone can exploit this via a crafted NXDOMAIN response to cause a 10-byte heap out-of-bounds read, potentially accessing stale data from prior transactions."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Low"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"description": "Out-of-bounds Read",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-31T11:48:30.188Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-12969"
},
{
"name": "RHBZ#2491663",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2491663"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-04-24T00:00:00.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-05-10T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Dnsmasq: dnsmasq: out-of-bounds read in find_soa() due to missing extrabytes validation",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.\nThe fix is available in dnsmasq 2.93rc1 and later."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-125: Out-of-bounds Read"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-12969",
"datePublished": "2026-06-23T13:28:56.732Z",
"dateReserved": "2026-06-23T09:25:06.270Z",
"dateUpdated": "2026-08-31T11:48:30.188Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-12725 (GCVE-0-2026-12725)
Vulnerability from nvd – Published: 2026-06-22 13:55 – Updated: 2026-08-31 21:22
VLAI
EPSS
VEX
Title
Dnsmasq: dnsmasq: heap buffer overflow in log_query() when logging unsupported ds/dnskey replies
Summary
A heap-based buffer overflow was found in dnsmasq. When DNSSEC validation and
query logging are both enabled, logging of DS or DNSKEY replies containing
unsupported algorithm or digest types can cause dnsmasq to write past the end
of an internal logging buffer. A remote attacker able to supply such a DNS
response may crash the dnsmasq process, resulting in denial of service.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 18:20 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-12725 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2490763 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-04-21 21:14
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-12725",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T18:20:23.362371Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-22T18:20:30.315Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unaffected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "unaffected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-8",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank Yiwei Hou (UC Berkeley) for reporting this issue."
}
],
"datePublic": "2026-04-21T21:14:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A heap-based buffer overflow was found in dnsmasq. When DNSSEC validation and\nquery logging are both enabled, logging of DS or DNSKEY replies containing\nunsupported algorithm or digest types can cause dnsmasq to write past the end\nof an internal logging buffer. A remote attacker able to supply such a DNS\nresponse may crash the dnsmasq process, resulting in denial of service."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Moderate"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "Heap-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-31T21:22:15.716Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-12725"
},
{
"name": "RHBZ#2490763",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2490763"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-06-19T14:38:57.965Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-04-21T21:14:00.000Z",
"value": "Made public."
}
],
"title": "Dnsmasq: dnsmasq: heap buffer overflow in log_query() when logging unsupported ds/dnskey replies",
"workarounds": [
{
"lang": "en",
"value": "Mitigate this issue by updating to a version of dnsmasq that includes the\nupstream fix (commit 36d081e37477027fd721fea498f3760f529034ad), or by\ndisabling query logging if DNSSEC validation must remain enabled. After\nchanging the configuration, restart the dnsmasq service for the changes to\ntake effect."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-122: Heap-based Buffer Overflow"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-12725",
"datePublished": "2026-06-22T13:55:05.406Z",
"dateReserved": "2026-06-19T14:44:05.921Z",
"dateUpdated": "2026-08-31T21:22:15.716Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2023-49441 (GCVE-0-2023-49441)
Vulnerability from nvd – Published: 2024-06-06 21:20 – Updated: 2025-03-14 15:19
VLAI
EPSS
VEX
Summary
dnsmasq 2.9 is vulnerable to Integer Overflow via forward_query.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-18 18:34 UTC
CWE
- n/a
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2023-49441",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-18T18:34:35.855998Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-03-14T15:19:01.559Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-02T21:53:45.199Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2023q4/017332.html"
},
{
"tags": [
"x_transferred"
],
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=65c2d6afd67a032f45f40d7e4d620f5d73e5f07d"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "dnsmasq 2.9 is vulnerable to Integer Overflow via forward_query."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-06-06T21:21:00.350Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2023q4/017332.html"
},
{
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=65c2d6afd67a032f45f40d7e4d620f5d73e5f07d"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2023-49441",
"datePublished": "2024-06-06T21:20:59.871Z",
"dateReserved": "2023-11-27T00:00:00.000Z",
"dateUpdated": "2025-03-14T15:19:01.559Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2023-50387 (GCVE-0-2023-50387)
Vulnerability from nvd – Published: 2024-02-14 00:00 – Updated: 2025-11-04 18:20
VLAI
EPSS
VEX
Summary
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-08 17:27 UTC
CWE
- n/a
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
36 references
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-04T18:20:34.949Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://www.athene-center.de/aktuelles/key-trap"
},
{
"tags": [
"x_transferred"
],
"url": "https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/"
},
{
"tags": [
"x_transferred"
],
"url": "https://kb.isc.org/docs/cve-2023-50387"
},
{
"tags": [
"x_transferred"
],
"url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/"
},
{
"tags": [
"x_transferred"
],
"url": "https://news.ycombinator.com/item?id=39367411"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.isc.org/blogs/2024-bind-security-release/"
},
{
"tags": [
"x_transferred"
],
"url": "https://news.ycombinator.com/item?id=39372384"
},
{
"tags": [
"x_transferred"
],
"url": "https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1"
},
{
"tags": [
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html"
},
{
"tags": [
"x_transferred"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387"
},
{
"tags": [
"x_transferred"
],
"url": "https://access.redhat.com/security/cve/CVE-2023-50387"
},
{
"tags": [
"x_transferred"
],
"url": "https://bugzilla.suse.com/show_bug.cgi?id=1219823"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf"
},
{
"name": "[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities",
"tags": [
"mailing-list",
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2024/02/16/2"
},
{
"name": "[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities",
"tags": [
"mailing-list",
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2024/02/16/3"
},
{
"name": "FEDORA-2024-2e26eccfcb",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/"
},
{
"name": "FEDORA-2024-e24211eff0",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/"
},
{
"name": "FEDORA-2024-21310568fa",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/"
},
{
"name": "[debian-lts-announce] 20240221 [SECURITY] [DLA 3736-1] unbound security update",
"tags": [
"mailing-list",
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html"
},
{
"name": "FEDORA-2024-b0f9656a76",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/"
},
{
"name": "FEDORA-2024-4e36df9dfd",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/"
},
{
"name": "FEDORA-2024-499b9be35f",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/"
},
{
"name": "FEDORA-2024-c36c448396",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/"
},
{
"name": "FEDORA-2024-c967c7d287",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/"
},
{
"name": "FEDORA-2024-e00eceb11c",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/"
},
{
"name": "FEDORA-2024-fae88b73eb",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
},
{
"tags": [
"x_transferred"
],
"url": "https://security.netapp.com/advisory/ntap-20240307-0007/"
},
{
"name": "[debian-lts-announce] 20240517 [SECURITY] [DLA 3816-1] bind9 security update",
"tags": [
"mailing-list",
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00001.html"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2023-50387",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-05-08T17:27:29.786375Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-05-12T15:02:17.822Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the \"KeyTrap\" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-06-10T16:14:16.780Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://www.athene-center.de/aktuelles/key-trap"
},
{
"url": "https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/"
},
{
"url": "https://kb.isc.org/docs/cve-2023-50387"
},
{
"url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html"
},
{
"url": "https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/"
},
{
"url": "https://news.ycombinator.com/item?id=39367411"
},
{
"url": "https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/"
},
{
"url": "https://www.isc.org/blogs/2024-bind-security-release/"
},
{
"url": "https://news.ycombinator.com/item?id=39372384"
},
{
"url": "https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1"
},
{
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html"
},
{
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2023-50387"
},
{
"url": "https://bugzilla.suse.com/show_bug.cgi?id=1219823"
},
{
"url": "https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf"
},
{
"name": "[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities",
"tags": [
"mailing-list"
],
"url": "http://www.openwall.com/lists/oss-security/2024/02/16/2"
},
{
"name": "[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities",
"tags": [
"mailing-list"
],
"url": "http://www.openwall.com/lists/oss-security/2024/02/16/3"
},
{
"name": "FEDORA-2024-2e26eccfcb",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/"
},
{
"name": "FEDORA-2024-e24211eff0",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/"
},
{
"name": "FEDORA-2024-21310568fa",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/"
},
{
"name": "[debian-lts-announce] 20240221 [SECURITY] [DLA 3736-1] unbound security update",
"tags": [
"mailing-list"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html"
},
{
"name": "FEDORA-2024-b0f9656a76",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/"
},
{
"name": "FEDORA-2024-4e36df9dfd",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/"
},
{
"name": "FEDORA-2024-499b9be35f",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/"
},
{
"name": "FEDORA-2024-c36c448396",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/"
},
{
"name": "FEDORA-2024-c967c7d287",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/"
},
{
"name": "FEDORA-2024-e00eceb11c",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/"
},
{
"name": "FEDORA-2024-fae88b73eb",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
},
{
"url": "https://security.netapp.com/advisory/ntap-20240307-0007/"
},
{
"name": "[debian-lts-announce] 20240517 [SECURITY] [DLA 3816-1] bind9 security update",
"tags": [
"mailing-list"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2023-50387",
"datePublished": "2024-02-14T00:00:00.000Z",
"dateReserved": "2023-12-07T00:00:00.000Z",
"dateUpdated": "2025-11-04T18:20:34.949Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2023-28450 (GCVE-0-2023-28450)
Vulnerability from nvd – Published: 2023-03-15 00:00 – Updated: 2025-11-03 21:47
VLAI
EPSS
VEX
Summary
An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-26 21:21 UTC
Assigner
References
7 references
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-03T21:47:37.596Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://thekelleys.org.uk/dnsmasq/doc.html"
},
{
"tags": [
"x_transferred"
],
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=eb92fb32b746f2104b0f370b5b295bb8dd4bd5e5"
},
{
"tags": [
"x_transferred"
],
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=blob%3Bf=CHANGELOG"
},
{
"tags": [
"x_transferred"
],
"url": "https://capec.mitre.org/data/definitions/495.html"
},
{
"name": "FEDORA-2023-828bf01834",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OU2ZT4ITSEOOR2CFBAHK4Z67KXJIEWQA/"
},
{
"name": "FEDORA-2023-eeca11a4df",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6UQ6LKDTLSSD64TBIZ3XEKBM2SWC63VV/"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2023-28450",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-26T21:21:11.576113Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-noinfo Not enough information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-02-26T21:21:21.124Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-04-17T00:00:00.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://thekelleys.org.uk/dnsmasq/doc.html"
},
{
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=eb92fb32b746f2104b0f370b5b295bb8dd4bd5e5"
},
{
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=blob%3Bf=CHANGELOG"
},
{
"url": "https://capec.mitre.org/data/definitions/495.html"
},
{
"name": "FEDORA-2023-828bf01834",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OU2ZT4ITSEOOR2CFBAHK4Z67KXJIEWQA/"
},
{
"name": "FEDORA-2023-eeca11a4df",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6UQ6LKDTLSSD64TBIZ3XEKBM2SWC63VV/"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2023-28450",
"datePublished": "2023-03-15T00:00:00.000Z",
"dateReserved": "2023-03-15T00:00:00.000Z",
"dateUpdated": "2025-11-03T21:47:37.596Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2022-0934 (GCVE-0-2022-0934)
Vulnerability from nvd – Published: 2022-08-29 14:03 – Updated: 2025-11-03 21:45
VLAI
EPSS
VEX
Summary
A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-10 13:19 UTC
CWE
- CWE-416 - - Use After Free
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2057075 | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2022-0934 | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2024… |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-03T21:45:45.666Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2057075"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=03345ecefeb0d82e3c3a4c28f27c3554f0611b39"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://access.redhat.com/security/cve/CVE-2022-0934"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2022-0934",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-06-10T13:19:58.915127Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-06-10T13:21:02.426Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "dnsmasq",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Not-Known"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 - Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-08-29T14:03:02.000Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2057075"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=03345ecefeb0d82e3c3a4c28f27c3554f0611b39"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://access.redhat.com/security/cve/CVE-2022-0934"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2022-0934",
"datePublished": "2022-08-29T14:03:02.000Z",
"dateReserved": "2022-03-11T00:00:00.000Z",
"dateUpdated": "2025-11-03T21:45:45.666Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2021-45957 (GCVE-0-2021-45957)
Vulnerability from nvd – Published: 2021-12-31 23:53 – Updated: 2024-08-04 04:54 Disputed
VLAI
EPSS
VEX
Summary
Dnsmasq 2.86 has a heap-based buffer overflow in answer_request (called from FuzzAnswerTheRequest and fuzz_rfc1035.c). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:54:31.142Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-935.yaml"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35920"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dnsmasq 2.86 has a heap-based buffer overflow in answer_request (called from FuzzAnswerTheRequest and fuzz_rfc1035.c). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-19T21:24:24.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-935.yaml"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35920"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"tags": [
"disputed"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-45957",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in answer_request (called from FuzzAnswerTheRequest and fuzz_rfc1035.c). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\""
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-935.yaml",
"refsource": "MISC",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-935.yaml"
},
{
"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35920",
"refsource": "MISC",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35920"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-45957",
"datePublished": "2021-12-31T23:53:25.000Z",
"dateReserved": "2021-12-31T00:00:00.000Z",
"dateUpdated": "2024-08-04T04:54:31.142Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-45956 (GCVE-0-2021-45956)
Vulnerability from nvd – Published: 2021-12-31 23:53 – Updated: 2024-10-28 20:56 Disputed
VLAI
EPSS
VEX
Summary
Dnsmasq 2.86 has a heap-based buffer overflow in print_mac (called from log_packet and dhcp_reply). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-18 15:21 UTC
CWE
- n/a
- CWE-787 - Out-of-bounds Write
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| thekelleys | dnsmasq |
Affected:
2.86
cpe:2.3:a:thekelleys:dnsmasq:2.86:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"affected": [
{
"cpes": [
"cpe:2.3:a:thekelleys:dnsmasq:2.86:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "dnsmasq",
"vendor": "thekelleys",
"versions": [
{
"status": "affected",
"version": "2.86"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2021-45956",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-07-18T15:21:23.662055Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-10-28T20:56:27.009Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:54:31.214Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-933.yaml"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35887"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dnsmasq 2.86 has a heap-based buffer overflow in print_mac (called from log_packet and dhcp_reply). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-19T21:23:07.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-933.yaml"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35887"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"tags": [
"disputed"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-45956",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in print_mac (called from log_packet and dhcp_reply). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\""
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-933.yaml",
"refsource": "MISC",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-933.yaml"
},
{
"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35887",
"refsource": "MISC",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35887"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-45956",
"datePublished": "2021-12-31T23:53:34.000Z",
"dateReserved": "2021-12-31T00:00:00.000Z",
"dateUpdated": "2024-10-28T20:56:27.009Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-45955 (GCVE-0-2021-45955)
Vulnerability from nvd – Published: 2021-12-31 23:53 – Updated: 2024-08-04 04:54 Disputed
VLAI
EPSS
VEX
Summary
Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called from FuzzResizePacket and fuzz_rfc1035.c) because of the lack of a proper bounds check upon pseudo header re-insertion. NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge." However, a contributor states that a security patch (mentioned in 016162.html) is needed
Severity
No CVSS data available.
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-11 15:10 UTC
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-45955",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-11T15:10:09.481544Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-06-11T15:10:17.876Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:54:31.055Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.yaml"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35898"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called from FuzzResizePacket and fuzz_rfc1035.c) because of the lack of a proper bounds check upon pseudo header re-insertion. NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\" However, a contributor states that a security patch (mentioned in 016162.html) is needed"
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-19T21:21:55.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.yaml"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35898"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"tags": [
"disputed"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-45955",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called from FuzzResizePacket and fuzz_rfc1035.c) because of the lack of a proper bounds check upon pseudo header re-insertion. NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\" However, a contributor states that a security patch (mentioned in 016162.html) is needed."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.yaml",
"refsource": "MISC",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.yaml"
},
{
"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35898",
"refsource": "MISC",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35898"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-45955",
"datePublished": "2021-12-31T23:53:42.000Z",
"dateReserved": "2021-12-31T00:00:00.000Z",
"dateUpdated": "2024-08-04T04:54:31.055Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-45954 (GCVE-0-2021-45954)
Vulnerability from nvd – Published: 2021-12-31 23:53 – Updated: 2024-08-04 04:54 Disputed
VLAI
EPSS
VEX
Summary
Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from answer_auth and FuzzAuth). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:54:31.184Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-931.yaml"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35861"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from answer_auth and FuzzAuth). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-19T21:15:21.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-931.yaml"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35861"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"tags": [
"disputed"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-45954",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from answer_auth and FuzzAuth). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\""
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-931.yaml",
"refsource": "MISC",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-931.yaml"
},
{
"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35861",
"refsource": "MISC",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35861"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-45954",
"datePublished": "2021-12-31T23:53:51.000Z",
"dateReserved": "2021-12-31T00:00:00.000Z",
"dateUpdated": "2024-08-04T04:54:31.184Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-45953 (GCVE-0-2021-45953)
Vulnerability from nvd – Published: 2021-12-31 23:52 – Updated: 2024-08-04 04:54 Disputed
VLAI
EPSS
VEX
Summary
Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from hash_questions and fuzz_util.c). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:54:31.143Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-929.yaml"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35858"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from hash_questions and fuzz_util.c). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-19T21:14:04.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-929.yaml"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35858"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"tags": [
"disputed"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-45953",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from hash_questions and fuzz_util.c). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\""
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-929.yaml",
"refsource": "MISC",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-929.yaml"
},
{
"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35858",
"refsource": "MISC",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35858"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-45953",
"datePublished": "2021-12-31T23:52:10.000Z",
"dateReserved": "2021-12-31T00:00:00.000Z",
"dateUpdated": "2024-08-04T04:54:31.143Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-45952 (GCVE-0-2021-45952)
Vulnerability from nvd – Published: 2021-12-31 23:53 – Updated: 2024-08-04 04:54 Disputed
VLAI
EPSS
VEX
Summary
Dnsmasq 2.86 has a heap-based buffer overflow in dhcp_reply (called from dhcp_packet and FuzzDhcp). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-02 18:52 UTC
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-45952",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-07-02T18:52:29.537981Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-07-02T18:52:39.045Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:54:31.222Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-927.yaml"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35870"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dnsmasq 2.86 has a heap-based buffer overflow in dhcp_reply (called from dhcp_packet and FuzzDhcp). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-19T21:12:41.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-927.yaml"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35870"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"tags": [
"disputed"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-45952",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in dhcp_reply (called from dhcp_packet and FuzzDhcp). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\""
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-927.yaml",
"refsource": "MISC",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-927.yaml"
},
{
"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35870",
"refsource": "MISC",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35870"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-45952",
"datePublished": "2021-12-31T23:53:59.000Z",
"dateReserved": "2021-12-31T00:00:00.000Z",
"dateUpdated": "2024-08-04T04:54:31.222Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-45951 (GCVE-0-2021-45951)
Vulnerability from nvd – Published: 2021-12-31 23:54 – Updated: 2024-08-04 04:54 Disputed
VLAI
EPSS
VEX
Summary
Dnsmasq 2.86 has a heap-based buffer overflow in check_bad_address (called from check_for_bogus_wildcard and FuzzCheckForBogusWildcard). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:54:31.071Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-924.yaml"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35868"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dnsmasq 2.86 has a heap-based buffer overflow in check_bad_address (called from check_for_bogus_wildcard and FuzzCheckForBogusWildcard). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-19T21:10:52.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-924.yaml"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35868"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"tags": [
"disputed"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-45951",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in check_bad_address (called from check_for_bogus_wildcard and FuzzCheckForBogusWildcard). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\""
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-924.yaml",
"refsource": "MISC",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-924.yaml"
},
{
"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35868",
"refsource": "MISC",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35868"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-45951",
"datePublished": "2021-12-31T23:54:10.000Z",
"dateReserved": "2021-12-31T00:00:00.000Z",
"dateUpdated": "2024-08-04T04:54:31.071Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-3448 (GCVE-0-2021-3448)
Vulnerability from nvd – Published: 2021-04-08 22:06 – Updated: 2025-12-03 00:40
VLAI
EPSS
VEX
Summary
A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity.
Severity
4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-03 00:40 UTC
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1939368 | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.gentoo.org/glsa/202105-20 | vendor-advisoryx_refsource_GENTOO |
| https://www.oracle.com/security-alerts/cpujan2022.html | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T16:53:17.620Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939368"
},
{
"name": "FEDORA-2021-62a5062b2d",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GHURNEHHUBSW45KMIZ4FNBCSUPWPGV5V/"
},
{
"name": "FEDORA-2021-9433bedebd",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FHG7GWSQWKF7JXIMLOGJBKZWBB4VIAJ7/"
},
{
"name": "FEDORA-2021-5cd2571751",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CVTJUOFFFHINLKWAOC2ZSC5MOPD4SJ24/"
},
{
"name": "GLSA-202105-20",
"tags": [
"vendor-advisory",
"x_refsource_GENTOO",
"x_transferred"
],
"url": "https://security.gentoo.org/glsa/202105-20"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.oracle.com/security-alerts/cpujan2022.html"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2021-3448",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-12-03T00:40:29.580724Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-12-03T00:40:40.220Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "dnsmasq",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "dnsmasq 2.85"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-358",
"description": "CWE-358",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-07T14:42:59.000Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939368"
},
{
"name": "FEDORA-2021-62a5062b2d",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GHURNEHHUBSW45KMIZ4FNBCSUPWPGV5V/"
},
{
"name": "FEDORA-2021-9433bedebd",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FHG7GWSQWKF7JXIMLOGJBKZWBB4VIAJ7/"
},
{
"name": "FEDORA-2021-5cd2571751",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CVTJUOFFFHINLKWAOC2ZSC5MOPD4SJ24/"
},
{
"name": "GLSA-202105-20",
"tags": [
"vendor-advisory",
"x_refsource_GENTOO"
],
"url": "https://security.gentoo.org/glsa/202105-20"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.oracle.com/security-alerts/cpujan2022.html"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2021-3448",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "dnsmasq",
"version": {
"version_data": [
{
"version_value": "dnsmasq 2.85"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-358"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=1939368",
"refsource": "MISC",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939368"
},
{
"name": "FEDORA-2021-62a5062b2d",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GHURNEHHUBSW45KMIZ4FNBCSUPWPGV5V/"
},
{
"name": "FEDORA-2021-9433bedebd",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FHG7GWSQWKF7JXIMLOGJBKZWBB4VIAJ7/"
},
{
"name": "FEDORA-2021-5cd2571751",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CVTJUOFFFHINLKWAOC2ZSC5MOPD4SJ24/"
},
{
"name": "GLSA-202105-20",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202105-20"
},
{
"name": "https://www.oracle.com/security-alerts/cpujan2022.html",
"refsource": "MISC",
"url": "https://www.oracle.com/security-alerts/cpujan2022.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2021-3448",
"datePublished": "2021-04-08T22:06:45.000Z",
"dateReserved": "2021-03-16T00:00:00.000Z",
"dateUpdated": "2025-12-03T00:40:40.220Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2020-25687 (GCVE-0-2020-25687)
Vulnerability from nvd – Published: 2021-01-20 16:31 – Updated: 2025-11-04 19:12
VLAI
EPSS
VEX
Summary
A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in dnsmasq when DNSSEC is enabled and before it validates the received DNS entries. This flaw allows a remote attacker, who can create valid DNS replies, to cause an overflow in a heap-allocated memory. This flaw is caused by the lack of length checks in rfc1035.c:extract_name(), which could be abused to make the code execute memcpy() with a negative size in sort_rrset() and cause a crash in dnsmasq, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Severity
No CVSS data available.
CWE
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://www.jsof-tech.com/disclosures/dnspooq/ | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=1891568 | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.gentoo.org/glsa/202101-17 | vendor-advisoryx_refsource_GENTOO |
| https://www.debian.org/security/2021/dsa-4844 | vendor-advisoryx_refsource_DEBIAN |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://www.kb.cert.org/vuls/id/434904 |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-04T19:12:15.417Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.jsof-tech.com/disclosures/dnspooq/"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1891568"
},
{
"name": "FEDORA-2021-84440e87ba",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/"
},
{
"name": "GLSA-202101-17",
"tags": [
"vendor-advisory",
"x_refsource_GENTOO",
"x_transferred"
],
"url": "https://security.gentoo.org/glsa/202101-17"
},
{
"name": "DSA-4844",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN",
"x_transferred"
],
"url": "https://www.debian.org/security/2021/dsa-4844"
},
{
"name": "FEDORA-2021-2e4c3d5a9d",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/"
},
{
"name": "[debian-lts-announce] 20210322 [SECURITY] [DLA 2604-1] dnsmasq security update",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00027.html"
},
{
"url": "https://www.kb.cert.org/vuls/id/434904"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "dnsmasq",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "dnsmasq 2.83"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in dnsmasq when DNSSEC is enabled and before it validates the received DNS entries. This flaw allows a remote attacker, who can create valid DNS replies, to cause an overflow in a heap-allocated memory. This flaw is caused by the lack of length checks in rfc1035.c:extract_name(), which could be abused to make the code execute memcpy() with a negative size in sort_rrset() and cause a crash in dnsmasq, resulting in a denial of service. The highest threat from this vulnerability is to system availability."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "CWE-122",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-03-22T20:06:14.000Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.jsof-tech.com/disclosures/dnspooq/"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1891568"
},
{
"name": "FEDORA-2021-84440e87ba",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/"
},
{
"name": "GLSA-202101-17",
"tags": [
"vendor-advisory",
"x_refsource_GENTOO"
],
"url": "https://security.gentoo.org/glsa/202101-17"
},
{
"name": "DSA-4844",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN"
],
"url": "https://www.debian.org/security/2021/dsa-4844"
},
{
"name": "FEDORA-2021-2e4c3d5a9d",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/"
},
{
"name": "[debian-lts-announce] 20210322 [SECURITY] [DLA 2604-1] dnsmasq security update",
"tags": [
"mailing-list",
"x_refsource_MLIST"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00027.html"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2020-25687",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "dnsmasq",
"version": {
"version_data": [
{
"version_value": "dnsmasq 2.83"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in dnsmasq when DNSSEC is enabled and before it validates the received DNS entries. This flaw allows a remote attacker, who can create valid DNS replies, to cause an overflow in a heap-allocated memory. This flaw is caused by the lack of length checks in rfc1035.c:extract_name(), which could be abused to make the code execute memcpy() with a negative size in sort_rrset() and cause a crash in dnsmasq, resulting in a denial of service. The highest threat from this vulnerability is to system availability."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-122"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.jsof-tech.com/disclosures/dnspooq/",
"refsource": "MISC",
"url": "https://www.jsof-tech.com/disclosures/dnspooq/"
},
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=1891568",
"refsource": "MISC",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1891568"
},
{
"name": "FEDORA-2021-84440e87ba",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/"
},
{
"name": "GLSA-202101-17",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202101-17"
},
{
"name": "DSA-4844",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2021/dsa-4844"
},
{
"name": "FEDORA-2021-2e4c3d5a9d",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/"
},
{
"name": "[debian-lts-announce] 20210322 [SECURITY] [DLA 2604-1] dnsmasq security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00027.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2020-25687",
"datePublished": "2021-01-20T16:31:41.000Z",
"dateReserved": "2020-09-16T00:00:00.000Z",
"dateUpdated": "2025-11-04T19:12:15.417Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2020-25686 (GCVE-0-2020-25686)
Vulnerability from nvd – Published: 2021-01-20 16:47 – Updated: 2025-11-04 19:12
VLAI
EPSS
VEX
Summary
A flaw was found in dnsmasq before version 2.83. When receiving a query, dnsmasq does not check for an existing pending request for the same name and forwards a new request. By default, a maximum of 150 pending queries can be sent to upstream servers, so there can be at most 150 queries for the same name. This flaw allows an off-path attacker on the network to substantially reduce the number of attempts that it would have to perform to forge a reply and have it accepted by dnsmasq. This issue is mentioned in the "Birthday Attacks" section of RFC5452. If chained with CVE-2020-25684, the attack complexity of a successful attack is reduced. The highest threat from this vulnerability is to data integrity.
Severity
No CVSS data available.
CWE
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://www.jsof-tech.com/disclosures/dnspooq/ | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=1890125 | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.gentoo.org/glsa/202101-17 | vendor-advisoryx_refsource_GENTOO |
| https://www.debian.org/security/2021/dsa-4844 | vendor-advisoryx_refsource_DEBIAN |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://www.arista.com/en/support/advisories-noti… | x_refsource_MISC |
| https://www.kb.cert.org/vuls/id/434904 |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-04T19:12:14.331Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.jsof-tech.com/disclosures/dnspooq/"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1890125"
},
{
"name": "FEDORA-2021-84440e87ba",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/"
},
{
"name": "GLSA-202101-17",
"tags": [
"vendor-advisory",
"x_refsource_GENTOO",
"x_transferred"
],
"url": "https://security.gentoo.org/glsa/202101-17"
},
{
"name": "DSA-4844",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN",
"x_transferred"
],
"url": "https://www.debian.org/security/2021/dsa-4844"
},
{
"name": "FEDORA-2021-2e4c3d5a9d",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12135-security-advisory-61"
},
{
"url": "https://www.kb.cert.org/vuls/id/434904"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "dnsmasq",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "dnsmasq 2.83"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in dnsmasq before version 2.83. When receiving a query, dnsmasq does not check for an existing pending request for the same name and forwards a new request. By default, a maximum of 150 pending queries can be sent to upstream servers, so there can be at most 150 queries for the same name. This flaw allows an off-path attacker on the network to substantially reduce the number of attempts that it would have to perform to forge a reply and have it accepted by dnsmasq. This issue is mentioned in the \"Birthday Attacks\" section of RFC5452. If chained with CVE-2020-25684, the attack complexity of a successful attack is reduced. The highest threat from this vulnerability is to data integrity."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-358",
"description": "CWE-358",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-01-25T13:52:14.000Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.jsof-tech.com/disclosures/dnspooq/"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1890125"
},
{
"name": "FEDORA-2021-84440e87ba",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/"
},
{
"name": "GLSA-202101-17",
"tags": [
"vendor-advisory",
"x_refsource_GENTOO"
],
"url": "https://security.gentoo.org/glsa/202101-17"
},
{
"name": "DSA-4844",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN"
],
"url": "https://www.debian.org/security/2021/dsa-4844"
},
{
"name": "FEDORA-2021-2e4c3d5a9d",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12135-security-advisory-61"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2020-25686",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "dnsmasq",
"version": {
"version_data": [
{
"version_value": "dnsmasq 2.83"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "A flaw was found in dnsmasq before version 2.83. When receiving a query, dnsmasq does not check for an existing pending request for the same name and forwards a new request. By default, a maximum of 150 pending queries can be sent to upstream servers, so there can be at most 150 queries for the same name. This flaw allows an off-path attacker on the network to substantially reduce the number of attempts that it would have to perform to forge a reply and have it accepted by dnsmasq. This issue is mentioned in the \"Birthday Attacks\" section of RFC5452. If chained with CVE-2020-25684, the attack complexity of a successful attack is reduced. The highest threat from this vulnerability is to data integrity."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-358"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.jsof-tech.com/disclosures/dnspooq/",
"refsource": "MISC",
"url": "https://www.jsof-tech.com/disclosures/dnspooq/"
},
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=1890125",
"refsource": "MISC",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1890125"
},
{
"name": "FEDORA-2021-84440e87ba",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/"
},
{
"name": "GLSA-202101-17",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202101-17"
},
{
"name": "DSA-4844",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2021/dsa-4844"
},
{
"name": "FEDORA-2021-2e4c3d5a9d",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/"
},
{
"name": "https://www.arista.com/en/support/advisories-notices/security-advisories/12135-security-advisory-61",
"refsource": "MISC",
"url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12135-security-advisory-61"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2020-25686",
"datePublished": "2021-01-20T16:47:17.000Z",
"dateReserved": "2020-09-16T00:00:00.000Z",
"dateUpdated": "2025-11-04T19:12:14.331Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-12969 (GCVE-0-2026-12969)
Vulnerability from cvelistv5 – Published: 2026-06-23 13:28 – Updated: 2026-08-31 11:48
VLAI
EPSS
VEX
Title
Dnsmasq: dnsmasq: out-of-bounds read in find_soa() due to missing extrabytes validation
Summary
An out-of-bounds read vulnerability exists in dnsmasq's find_soa() function in src/rfc1035.c. When parsing NS section records, extract_name() is called with extrabytes=0, failing to validate that 10 additional bytes exist for fixed-length DNS record fields. A remote attacker controlling a DNS zone can exploit this via a crafted NXDOMAIN response to cause a 10-byte heap out-of-bounds read, potentially accessing stale data from prior transactions.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-23 15:02 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-12969 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2491663 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-05-10 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-12969",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-23T15:02:23.863843Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-23T15:04:49.622Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unaffected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "unaffected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "unaffected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "unaffected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "unaffected",
"packageName": "openshift/ose-rhel-coreos-8",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "unaffected",
"packageName": "openshift/ose-rhel-coreos-9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank dolitli for reporting this issue."
}
],
"datePublic": "2026-05-10T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "An out-of-bounds read vulnerability exists in dnsmasq\u0027s find_soa() function in src/rfc1035.c. When parsing NS section records, extract_name() is called with extrabytes=0, failing to validate that 10 additional bytes exist for fixed-length DNS record fields. A remote attacker controlling a DNS zone can exploit this via a crafted NXDOMAIN response to cause a 10-byte heap out-of-bounds read, potentially accessing stale data from prior transactions."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Low"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"description": "Out-of-bounds Read",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-31T11:48:30.188Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-12969"
},
{
"name": "RHBZ#2491663",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2491663"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-04-24T00:00:00.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-05-10T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Dnsmasq: dnsmasq: out-of-bounds read in find_soa() due to missing extrabytes validation",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.\nThe fix is available in dnsmasq 2.93rc1 and later."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-125: Out-of-bounds Read"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-12969",
"datePublished": "2026-06-23T13:28:56.732Z",
"dateReserved": "2026-06-23T09:25:06.270Z",
"dateUpdated": "2026-08-31T11:48:30.188Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-12725 (GCVE-0-2026-12725)
Vulnerability from cvelistv5 – Published: 2026-06-22 13:55 – Updated: 2026-08-31 21:22
VLAI
EPSS
VEX
Title
Dnsmasq: dnsmasq: heap buffer overflow in log_query() when logging unsupported ds/dnskey replies
Summary
A heap-based buffer overflow was found in dnsmasq. When DNSSEC validation and
query logging are both enabled, logging of DS or DNSKEY replies containing
unsupported algorithm or digest types can cause dnsmasq to write past the end
of an internal logging buffer. A remote attacker able to supply such a DNS
response may crash the dnsmasq process, resulting in denial of service.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 18:20 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-12725 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2490763 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-04-21 21:14
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-12725",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-22T18:20:23.362371Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-22T18:20:30.315Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unaffected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "unaffected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "dnsmasq",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-8",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank Yiwei Hou (UC Berkeley) for reporting this issue."
}
],
"datePublic": "2026-04-21T21:14:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A heap-based buffer overflow was found in dnsmasq. When DNSSEC validation and\nquery logging are both enabled, logging of DS or DNSKEY replies containing\nunsupported algorithm or digest types can cause dnsmasq to write past the end\nof an internal logging buffer. A remote attacker able to supply such a DNS\nresponse may crash the dnsmasq process, resulting in denial of service."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Moderate"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "Heap-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-31T21:22:15.716Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-12725"
},
{
"name": "RHBZ#2490763",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2490763"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-06-19T14:38:57.965Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-04-21T21:14:00.000Z",
"value": "Made public."
}
],
"title": "Dnsmasq: dnsmasq: heap buffer overflow in log_query() when logging unsupported ds/dnskey replies",
"workarounds": [
{
"lang": "en",
"value": "Mitigate this issue by updating to a version of dnsmasq that includes the\nupstream fix (commit 36d081e37477027fd721fea498f3760f529034ad), or by\ndisabling query logging if DNSSEC validation must remain enabled. After\nchanging the configuration, restart the dnsmasq service for the changes to\ntake effect."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-122: Heap-based Buffer Overflow"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-12725",
"datePublished": "2026-06-22T13:55:05.406Z",
"dateReserved": "2026-06-19T14:44:05.921Z",
"dateUpdated": "2026-08-31T21:22:15.716Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2023-49441 (GCVE-0-2023-49441)
Vulnerability from cvelistv5 – Published: 2024-06-06 21:20 – Updated: 2025-03-14 15:19
VLAI
EPSS
VEX
Summary
dnsmasq 2.9 is vulnerable to Integer Overflow via forward_query.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-18 18:34 UTC
CWE
- n/a
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2023-49441",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-18T18:34:35.855998Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-03-14T15:19:01.559Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-02T21:53:45.199Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2023q4/017332.html"
},
{
"tags": [
"x_transferred"
],
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=65c2d6afd67a032f45f40d7e4d620f5d73e5f07d"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "dnsmasq 2.9 is vulnerable to Integer Overflow via forward_query."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-06-06T21:21:00.350Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2023q4/017332.html"
},
{
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=65c2d6afd67a032f45f40d7e4d620f5d73e5f07d"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2023-49441",
"datePublished": "2024-06-06T21:20:59.871Z",
"dateReserved": "2023-11-27T00:00:00.000Z",
"dateUpdated": "2025-03-14T15:19:01.559Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2023-50387 (GCVE-0-2023-50387)
Vulnerability from cvelistv5 – Published: 2024-02-14 00:00 – Updated: 2025-11-04 18:20
VLAI
EPSS
VEX
Summary
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-08 17:27 UTC
CWE
- n/a
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
36 references
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-04T18:20:34.949Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://www.athene-center.de/aktuelles/key-trap"
},
{
"tags": [
"x_transferred"
],
"url": "https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/"
},
{
"tags": [
"x_transferred"
],
"url": "https://kb.isc.org/docs/cve-2023-50387"
},
{
"tags": [
"x_transferred"
],
"url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/"
},
{
"tags": [
"x_transferred"
],
"url": "https://news.ycombinator.com/item?id=39367411"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.isc.org/blogs/2024-bind-security-release/"
},
{
"tags": [
"x_transferred"
],
"url": "https://news.ycombinator.com/item?id=39372384"
},
{
"tags": [
"x_transferred"
],
"url": "https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1"
},
{
"tags": [
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html"
},
{
"tags": [
"x_transferred"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387"
},
{
"tags": [
"x_transferred"
],
"url": "https://access.redhat.com/security/cve/CVE-2023-50387"
},
{
"tags": [
"x_transferred"
],
"url": "https://bugzilla.suse.com/show_bug.cgi?id=1219823"
},
{
"tags": [
"x_transferred"
],
"url": "https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf"
},
{
"name": "[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities",
"tags": [
"mailing-list",
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2024/02/16/2"
},
{
"name": "[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities",
"tags": [
"mailing-list",
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2024/02/16/3"
},
{
"name": "FEDORA-2024-2e26eccfcb",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/"
},
{
"name": "FEDORA-2024-e24211eff0",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/"
},
{
"name": "FEDORA-2024-21310568fa",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/"
},
{
"name": "[debian-lts-announce] 20240221 [SECURITY] [DLA 3736-1] unbound security update",
"tags": [
"mailing-list",
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html"
},
{
"name": "FEDORA-2024-b0f9656a76",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/"
},
{
"name": "FEDORA-2024-4e36df9dfd",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/"
},
{
"name": "FEDORA-2024-499b9be35f",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/"
},
{
"name": "FEDORA-2024-c36c448396",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/"
},
{
"name": "FEDORA-2024-c967c7d287",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/"
},
{
"name": "FEDORA-2024-e00eceb11c",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/"
},
{
"name": "FEDORA-2024-fae88b73eb",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
},
{
"tags": [
"x_transferred"
],
"url": "https://security.netapp.com/advisory/ntap-20240307-0007/"
},
{
"name": "[debian-lts-announce] 20240517 [SECURITY] [DLA 3816-1] bind9 security update",
"tags": [
"mailing-list",
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00001.html"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2023-50387",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-05-08T17:27:29.786375Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-05-12T15:02:17.822Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the \"KeyTrap\" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-06-10T16:14:16.780Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://www.athene-center.de/aktuelles/key-trap"
},
{
"url": "https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/"
},
{
"url": "https://kb.isc.org/docs/cve-2023-50387"
},
{
"url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html"
},
{
"url": "https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/"
},
{
"url": "https://news.ycombinator.com/item?id=39367411"
},
{
"url": "https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/"
},
{
"url": "https://www.isc.org/blogs/2024-bind-security-release/"
},
{
"url": "https://news.ycombinator.com/item?id=39372384"
},
{
"url": "https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1"
},
{
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html"
},
{
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2023-50387"
},
{
"url": "https://bugzilla.suse.com/show_bug.cgi?id=1219823"
},
{
"url": "https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf"
},
{
"name": "[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities",
"tags": [
"mailing-list"
],
"url": "http://www.openwall.com/lists/oss-security/2024/02/16/2"
},
{
"name": "[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities",
"tags": [
"mailing-list"
],
"url": "http://www.openwall.com/lists/oss-security/2024/02/16/3"
},
{
"name": "FEDORA-2024-2e26eccfcb",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/"
},
{
"name": "FEDORA-2024-e24211eff0",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/"
},
{
"name": "FEDORA-2024-21310568fa",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/"
},
{
"name": "[debian-lts-announce] 20240221 [SECURITY] [DLA 3736-1] unbound security update",
"tags": [
"mailing-list"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html"
},
{
"name": "FEDORA-2024-b0f9656a76",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/"
},
{
"name": "FEDORA-2024-4e36df9dfd",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/"
},
{
"name": "FEDORA-2024-499b9be35f",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/"
},
{
"name": "FEDORA-2024-c36c448396",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/"
},
{
"name": "FEDORA-2024-c967c7d287",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/"
},
{
"name": "FEDORA-2024-e00eceb11c",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/"
},
{
"name": "FEDORA-2024-fae88b73eb",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
},
{
"url": "https://security.netapp.com/advisory/ntap-20240307-0007/"
},
{
"name": "[debian-lts-announce] 20240517 [SECURITY] [DLA 3816-1] bind9 security update",
"tags": [
"mailing-list"
],
"url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2023-50387",
"datePublished": "2024-02-14T00:00:00.000Z",
"dateReserved": "2023-12-07T00:00:00.000Z",
"dateUpdated": "2025-11-04T18:20:34.949Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2023-28450 (GCVE-0-2023-28450)
Vulnerability from cvelistv5 – Published: 2023-03-15 00:00 – Updated: 2025-11-03 21:47
VLAI
EPSS
VEX
Summary
An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-26 21:21 UTC
Assigner
References
7 references
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-03T21:47:37.596Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://thekelleys.org.uk/dnsmasq/doc.html"
},
{
"tags": [
"x_transferred"
],
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=eb92fb32b746f2104b0f370b5b295bb8dd4bd5e5"
},
{
"tags": [
"x_transferred"
],
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=blob%3Bf=CHANGELOG"
},
{
"tags": [
"x_transferred"
],
"url": "https://capec.mitre.org/data/definitions/495.html"
},
{
"name": "FEDORA-2023-828bf01834",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OU2ZT4ITSEOOR2CFBAHK4Z67KXJIEWQA/"
},
{
"name": "FEDORA-2023-eeca11a4df",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6UQ6LKDTLSSD64TBIZ3XEKBM2SWC63VV/"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2023-28450",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-26T21:21:11.576113Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-noinfo Not enough information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-02-26T21:21:21.124Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-04-17T00:00:00.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://thekelleys.org.uk/dnsmasq/doc.html"
},
{
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=eb92fb32b746f2104b0f370b5b295bb8dd4bd5e5"
},
{
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=blob%3Bf=CHANGELOG"
},
{
"url": "https://capec.mitre.org/data/definitions/495.html"
},
{
"name": "FEDORA-2023-828bf01834",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OU2ZT4ITSEOOR2CFBAHK4Z67KXJIEWQA/"
},
{
"name": "FEDORA-2023-eeca11a4df",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6UQ6LKDTLSSD64TBIZ3XEKBM2SWC63VV/"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2023-28450",
"datePublished": "2023-03-15T00:00:00.000Z",
"dateReserved": "2023-03-15T00:00:00.000Z",
"dateUpdated": "2025-11-03T21:47:37.596Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2022-0934 (GCVE-0-2022-0934)
Vulnerability from cvelistv5 – Published: 2022-08-29 14:03 – Updated: 2025-11-03 21:45
VLAI
EPSS
VEX
Summary
A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-10 13:19 UTC
CWE
- CWE-416 - - Use After Free
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2057075 | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2022-0934 | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2024… |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-03T21:45:45.666Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2057075"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=03345ecefeb0d82e3c3a4c28f27c3554f0611b39"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://access.redhat.com/security/cve/CVE-2022-0934"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2022-0934",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-06-10T13:19:58.915127Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-06-10T13:21:02.426Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "dnsmasq",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Not-Known"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 - Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-08-29T14:03:02.000Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2057075"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=03345ecefeb0d82e3c3a4c28f27c3554f0611b39"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://access.redhat.com/security/cve/CVE-2022-0934"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2022-0934",
"datePublished": "2022-08-29T14:03:02.000Z",
"dateReserved": "2022-03-11T00:00:00.000Z",
"dateUpdated": "2025-11-03T21:45:45.666Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2021-45951 (GCVE-0-2021-45951)
Vulnerability from cvelistv5 – Published: 2021-12-31 23:54 – Updated: 2024-08-04 04:54 Disputed
VLAI
EPSS
VEX
Summary
Dnsmasq 2.86 has a heap-based buffer overflow in check_bad_address (called from check_for_bogus_wildcard and FuzzCheckForBogusWildcard). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:54:31.071Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-924.yaml"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35868"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dnsmasq 2.86 has a heap-based buffer overflow in check_bad_address (called from check_for_bogus_wildcard and FuzzCheckForBogusWildcard). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-19T21:10:52.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-924.yaml"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35868"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"tags": [
"disputed"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-45951",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in check_bad_address (called from check_for_bogus_wildcard and FuzzCheckForBogusWildcard). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\""
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-924.yaml",
"refsource": "MISC",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-924.yaml"
},
{
"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35868",
"refsource": "MISC",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35868"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-45951",
"datePublished": "2021-12-31T23:54:10.000Z",
"dateReserved": "2021-12-31T00:00:00.000Z",
"dateUpdated": "2024-08-04T04:54:31.071Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-45952 (GCVE-0-2021-45952)
Vulnerability from cvelistv5 – Published: 2021-12-31 23:53 – Updated: 2024-08-04 04:54 Disputed
VLAI
EPSS
VEX
Summary
Dnsmasq 2.86 has a heap-based buffer overflow in dhcp_reply (called from dhcp_packet and FuzzDhcp). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-02 18:52 UTC
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-45952",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-07-02T18:52:29.537981Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-07-02T18:52:39.045Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:54:31.222Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-927.yaml"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35870"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dnsmasq 2.86 has a heap-based buffer overflow in dhcp_reply (called from dhcp_packet and FuzzDhcp). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-19T21:12:41.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-927.yaml"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35870"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"tags": [
"disputed"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-45952",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in dhcp_reply (called from dhcp_packet and FuzzDhcp). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\""
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-927.yaml",
"refsource": "MISC",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-927.yaml"
},
{
"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35870",
"refsource": "MISC",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35870"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-45952",
"datePublished": "2021-12-31T23:53:59.000Z",
"dateReserved": "2021-12-31T00:00:00.000Z",
"dateUpdated": "2024-08-04T04:54:31.222Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-45954 (GCVE-0-2021-45954)
Vulnerability from cvelistv5 – Published: 2021-12-31 23:53 – Updated: 2024-08-04 04:54 Disputed
VLAI
EPSS
VEX
Summary
Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from answer_auth and FuzzAuth). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:54:31.184Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-931.yaml"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35861"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from answer_auth and FuzzAuth). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-19T21:15:21.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-931.yaml"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35861"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"tags": [
"disputed"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-45954",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from answer_auth and FuzzAuth). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\""
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-931.yaml",
"refsource": "MISC",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-931.yaml"
},
{
"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35861",
"refsource": "MISC",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35861"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-45954",
"datePublished": "2021-12-31T23:53:51.000Z",
"dateReserved": "2021-12-31T00:00:00.000Z",
"dateUpdated": "2024-08-04T04:54:31.184Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-45955 (GCVE-0-2021-45955)
Vulnerability from cvelistv5 – Published: 2021-12-31 23:53 – Updated: 2024-08-04 04:54 Disputed
VLAI
EPSS
VEX
Summary
Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called from FuzzResizePacket and fuzz_rfc1035.c) because of the lack of a proper bounds check upon pseudo header re-insertion. NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge." However, a contributor states that a security patch (mentioned in 016162.html) is needed
Severity
No CVSS data available.
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-11 15:10 UTC
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2021-45955",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-11T15:10:09.481544Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-06-11T15:10:17.876Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:54:31.055Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.yaml"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35898"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called from FuzzResizePacket and fuzz_rfc1035.c) because of the lack of a proper bounds check upon pseudo header re-insertion. NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\" However, a contributor states that a security patch (mentioned in 016162.html) is needed"
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-19T21:21:55.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.yaml"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35898"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"tags": [
"disputed"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-45955",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called from FuzzResizePacket and fuzz_rfc1035.c) because of the lack of a proper bounds check upon pseudo header re-insertion. NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\" However, a contributor states that a security patch (mentioned in 016162.html) is needed."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.yaml",
"refsource": "MISC",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.yaml"
},
{
"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35898",
"refsource": "MISC",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35898"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-45955",
"datePublished": "2021-12-31T23:53:42.000Z",
"dateReserved": "2021-12-31T00:00:00.000Z",
"dateUpdated": "2024-08-04T04:54:31.055Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-45956 (GCVE-0-2021-45956)
Vulnerability from cvelistv5 – Published: 2021-12-31 23:53 – Updated: 2024-10-28 20:56 Disputed
VLAI
EPSS
VEX
Summary
Dnsmasq 2.86 has a heap-based buffer overflow in print_mac (called from log_packet and dhcp_reply). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-18 15:21 UTC
CWE
- n/a
- CWE-787 - Out-of-bounds Write
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| thekelleys | dnsmasq |
Affected:
2.86
cpe:2.3:a:thekelleys:dnsmasq:2.86:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"affected": [
{
"cpes": [
"cpe:2.3:a:thekelleys:dnsmasq:2.86:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "dnsmasq",
"vendor": "thekelleys",
"versions": [
{
"status": "affected",
"version": "2.86"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2021-45956",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-07-18T15:21:23.662055Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-10-28T20:56:27.009Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:54:31.214Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-933.yaml"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35887"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dnsmasq 2.86 has a heap-based buffer overflow in print_mac (called from log_packet and dhcp_reply). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-19T21:23:07.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-933.yaml"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35887"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"tags": [
"disputed"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-45956",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in print_mac (called from log_packet and dhcp_reply). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\""
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-933.yaml",
"refsource": "MISC",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-933.yaml"
},
{
"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35887",
"refsource": "MISC",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35887"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-45956",
"datePublished": "2021-12-31T23:53:34.000Z",
"dateReserved": "2021-12-31T00:00:00.000Z",
"dateUpdated": "2024-10-28T20:56:27.009Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-45957 (GCVE-0-2021-45957)
Vulnerability from cvelistv5 – Published: 2021-12-31 23:53 – Updated: 2024-08-04 04:54 Disputed
VLAI
EPSS
VEX
Summary
Dnsmasq 2.86 has a heap-based buffer overflow in answer_request (called from FuzzAnswerTheRequest and fuzz_rfc1035.c). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:54:31.142Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-935.yaml"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35920"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dnsmasq 2.86 has a heap-based buffer overflow in answer_request (called from FuzzAnswerTheRequest and fuzz_rfc1035.c). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-19T21:24:24.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-935.yaml"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35920"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"tags": [
"disputed"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-45957",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in answer_request (called from FuzzAnswerTheRequest and fuzz_rfc1035.c). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\""
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-935.yaml",
"refsource": "MISC",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-935.yaml"
},
{
"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35920",
"refsource": "MISC",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35920"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-45957",
"datePublished": "2021-12-31T23:53:25.000Z",
"dateReserved": "2021-12-31T00:00:00.000Z",
"dateUpdated": "2024-08-04T04:54:31.142Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-45953 (GCVE-0-2021-45953)
Vulnerability from cvelistv5 – Published: 2021-12-31 23:52 – Updated: 2024-08-04 04:54 Disputed
VLAI
EPSS
VEX
Summary
Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from hash_questions and fuzz_util.c). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
| https://lists.thekelleys.org.uk/pipermail/dnsmasq… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T04:54:31.143Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-929.yaml"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35858"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from hash_questions and fuzz_util.c). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-19T21:14:04.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-929.yaml"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35858"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
],
"tags": [
"disputed"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-45953",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** DISPUTED ** Dnsmasq 2.86 has a heap-based buffer overflow in extract_name (called from hash_questions and fuzz_util.c). NOTE: the vendor\u0027s position is that CVE-2021-45951 through CVE-2021-45957 \"do not represent real vulnerabilities, to the best of our knowledge.\""
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-929.yaml",
"refsource": "MISC",
"url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-929.yaml"
},
{
"name": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35858",
"refsource": "MISC",
"url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35858"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016162.html"
},
{
"name": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html",
"refsource": "MISC",
"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016164.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-45953",
"datePublished": "2021-12-31T23:52:10.000Z",
"dateReserved": "2021-12-31T00:00:00.000Z",
"dateUpdated": "2024-08-04T04:54:31.143Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2021-3448 (GCVE-0-2021-3448)
Vulnerability from cvelistv5 – Published: 2021-04-08 22:06 – Updated: 2025-12-03 00:40
VLAI
EPSS
VEX
Summary
A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity.
Severity
4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-03 00:40 UTC
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1939368 | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.gentoo.org/glsa/202105-20 | vendor-advisoryx_refsource_GENTOO |
| https://www.oracle.com/security-alerts/cpujan2022.html | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T16:53:17.620Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939368"
},
{
"name": "FEDORA-2021-62a5062b2d",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GHURNEHHUBSW45KMIZ4FNBCSUPWPGV5V/"
},
{
"name": "FEDORA-2021-9433bedebd",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FHG7GWSQWKF7JXIMLOGJBKZWBB4VIAJ7/"
},
{
"name": "FEDORA-2021-5cd2571751",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CVTJUOFFFHINLKWAOC2ZSC5MOPD4SJ24/"
},
{
"name": "GLSA-202105-20",
"tags": [
"vendor-advisory",
"x_refsource_GENTOO",
"x_transferred"
],
"url": "https://security.gentoo.org/glsa/202105-20"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.oracle.com/security-alerts/cpujan2022.html"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2021-3448",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-12-03T00:40:29.580724Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-12-03T00:40:40.220Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "dnsmasq",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "dnsmasq 2.85"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-358",
"description": "CWE-358",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-02-07T14:42:59.000Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939368"
},
{
"name": "FEDORA-2021-62a5062b2d",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GHURNEHHUBSW45KMIZ4FNBCSUPWPGV5V/"
},
{
"name": "FEDORA-2021-9433bedebd",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FHG7GWSQWKF7JXIMLOGJBKZWBB4VIAJ7/"
},
{
"name": "FEDORA-2021-5cd2571751",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CVTJUOFFFHINLKWAOC2ZSC5MOPD4SJ24/"
},
{
"name": "GLSA-202105-20",
"tags": [
"vendor-advisory",
"x_refsource_GENTOO"
],
"url": "https://security.gentoo.org/glsa/202105-20"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.oracle.com/security-alerts/cpujan2022.html"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2021-3448",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "dnsmasq",
"version": {
"version_data": [
{
"version_value": "dnsmasq 2.85"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-358"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=1939368",
"refsource": "MISC",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939368"
},
{
"name": "FEDORA-2021-62a5062b2d",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GHURNEHHUBSW45KMIZ4FNBCSUPWPGV5V/"
},
{
"name": "FEDORA-2021-9433bedebd",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FHG7GWSQWKF7JXIMLOGJBKZWBB4VIAJ7/"
},
{
"name": "FEDORA-2021-5cd2571751",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CVTJUOFFFHINLKWAOC2ZSC5MOPD4SJ24/"
},
{
"name": "GLSA-202105-20",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202105-20"
},
{
"name": "https://www.oracle.com/security-alerts/cpujan2022.html",
"refsource": "MISC",
"url": "https://www.oracle.com/security-alerts/cpujan2022.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2021-3448",
"datePublished": "2021-04-08T22:06:45.000Z",
"dateReserved": "2021-03-16T00:00:00.000Z",
"dateUpdated": "2025-12-03T00:40:40.220Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}