CWE-400
DiscouragedUncontrolled Resource Consumption
Abstraction: Class · Status: Draft
The product does not properly control the allocation and maintenance of a limited resource.
6465 vulnerabilities reference this CWE, most recent first.
GHSA-V6X5-CG8R-VV6X
Vulnerability from github – Published: 2026-04-02 20:30 – Updated: 2026-05-13 16:18Summary
Rack::Multipart::Parser#handle_mime_head parses quoted multipart parameters such as Content-Disposition: form-data; name="..." using repeated String#index searches combined with String#slice! prefix deletion. For escape-heavy quoted values, this causes super-linear processing.
An unauthenticated attacker can send a crafted multipart/form-data request containing many parts with long backslash-escaped parameter values to trigger excessive CPU usage during multipart parsing.
This results in a denial of service condition in Rack applications that accept multipart form data.
Details
Rack::Multipart::Parser#handle_mime_head parses quoted parameter values by repeatedly:
- Searching for the next quote or backslash,
- Copying the preceding substring into a new buffer, and
- Removing the processed prefix from the original string with
slice!.
An attacker can exploit this by sending a multipart request with many parts whose name parameters contain long escape-heavy values such as:
name="a\\a\\a\\a\\a\\..."
Under default Rack limits, a request can contain up to 4095 parts. If many of those parts use long quoted values with dense escape characters, the parser performs disproportionately expensive CPU work while remaining within normal request size and part-count limits.
Impact
Any Rack application that accepts multipart/form-data requests may be affected, including file upload endpoints and standard HTML form handlers.
An unauthenticated attacker can send crafted multipart requests that consume excessive CPU time during request parsing. Repeated requests can tie up application workers, reduce throughput, and degrade or deny service availability.
Mitigation
- Update to a patched version of Rack that parses quoted multipart parameters without repeated rescanning and destructive prefix deletion.
- Apply request throttling or rate limiting to multipart upload endpoints.
- Where operationally feasible, restrict or isolate multipart parsing on untrusted high-volume endpoints.
{
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "rack"
},
"ranges": [
{
"events": [
{
"introduced": "3.0.0.beta1"
},
{
"fixed": "3.1.21"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "RubyGems",
"name": "rack"
},
"ranges": [
{
"events": [
{
"introduced": "3.2.0"
},
{
"fixed": "3.2.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-34827"
],
"database_specific": {
"cwe_ids": [
"CWE-400",
"CWE-407",
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-02T20:30:12Z",
"nvd_published_at": "2026-04-02T18:16:33Z",
"severity": "HIGH"
},
"details": "## Summary\n\n`Rack::Multipart::Parser#handle_mime_head` parses quoted multipart parameters such as `Content-Disposition: form-data; name=\"...\"` using repeated `String#index` searches combined with `String#slice!` prefix deletion. For escape-heavy quoted values, this causes super-linear processing.\n\nAn unauthenticated attacker can send a crafted `multipart/form-data` request containing many parts with long backslash-escaped parameter values to trigger excessive CPU usage during multipart parsing.\n\nThis results in a denial of service condition in Rack applications that accept multipart form data.\n\n## Details\n\n`Rack::Multipart::Parser#handle_mime_head` parses quoted parameter values by repeatedly:\n\n1. Searching for the next quote or backslash,\n2. Copying the preceding substring into a new buffer, and\n3. Removing the processed prefix from the original string with `slice!`.\n\nAn attacker can exploit this by sending a multipart request with many parts whose `name` parameters contain long escape-heavy values such as:\n\n```text\nname=\"a\\\\a\\\\a\\\\a\\\\a\\\\...\"\n```\n\nUnder default Rack limits, a request can contain up to 4095 parts. If many of those parts use long quoted values with dense escape characters, the parser performs disproportionately expensive CPU work while remaining within normal request size and part-count limits.\n\n## Impact\n\nAny Rack application that accepts `multipart/form-data` requests may be affected, including file upload endpoints and standard HTML form handlers.\n\nAn unauthenticated attacker can send crafted multipart requests that consume excessive CPU time during request parsing. Repeated requests can tie up application workers, reduce throughput, and degrade or deny service availability.\n\n## Mitigation\n\n* Update to a patched version of Rack that parses quoted multipart parameters without repeated rescanning and destructive prefix deletion.\n* Apply request throttling or rate limiting to multipart upload endpoints.\n* Where operationally feasible, restrict or isolate multipart parsing on untrusted high-volume endpoints.",
"id": "GHSA-v6x5-cg8r-vv6x",
"modified": "2026-05-13T16:18:33Z",
"published": "2026-04-02T20:30:12Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/rack/rack/security/advisories/GHSA-v6x5-cg8r-vv6x"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34827"
},
{
"type": "PACKAGE",
"url": "https://github.com/rack/rack"
},
{
"type": "WEB",
"url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2026-34827.yml"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Rack\u0027s multipart header parsing allows Denial of Service via escape-heavy quoted parameters"
}
GHSA-V725-5HVR-7JQ6
Vulnerability from github – Published: 2026-07-28 21:31 – Updated: 2026-07-28 21:31IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 are affected by a denial of service vulnerability in the HTTP channel due to unbounded allocation of resources without limits.
{
"affected": [],
"aliases": [
"CVE-2026-14981"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-28T21:17:27Z",
"severity": "HIGH"
},
"details": "IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 are affected by a denial of service vulnerability in the HTTP channel due to unbounded allocation of resources without limits.",
"id": "GHSA-v725-5hvr-7jq6",
"modified": "2026-07-28T21:31:34Z",
"published": "2026-07-28T21:31:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14981"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7281625"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-V73C-8GWM-Q3W7
Vulnerability from github – Published: 2026-09-23 06:31 – Updated: 2026-09-23 12:31The divi-dash WordPress plugin before 1.0.7 does not validate the source of the client IP address it uses for rate limiting and banning, allowing unauthenticated attackers to spoof arbitrary IP addresses in order to bypass rate limiting, ban chosen addresses from the feature, and grow a stored option without bound, resulting in denial of service.
{
"affected": [],
"aliases": [
"CVE-2026-14321"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-23T06:17:00Z",
"severity": "HIGH"
},
"details": "The divi-dash WordPress plugin before 1.0.7 does not validate the source of the client IP address it uses for rate limiting and banning, allowing unauthenticated attackers to spoof arbitrary IP addresses in order to bypass rate limiting, ban chosen addresses from the feature, and grow a stored option without bound, resulting in denial of service.",
"id": "GHSA-v73c-8gwm-q3w7",
"modified": "2026-09-23T12:31:09Z",
"published": "2026-09-23T06:31:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14321"
},
{
"type": "WEB",
"url": "https://wpscan.com/vulnerability/6f56b800-c8f6-4cd9-a137-c05b718db201"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-V74W-7MR3-4QG3
Vulnerability from github – Published: 2026-07-24 16:53 – Updated: 2026-08-13 14:25Summary
An attacker can cause Denial of Service by sending a specially crafted malicious XML payload (e.g., repeated </ characters) to a Netty server utilizing XmlFrameDecoder, causing the server's EventLoop thread to exhaust CPU resources and become unresponsive.
Details
io.netty.handler.codec.xml.XmlFrameDecoder suffers from a vulnerability resulting in CPU exhaustion. When < followed by / is encountered, the decoder scans the remaining buffer for a closing >.
Because the parser state is not saved between decode() invocations, an attacker can trickle-feed a payload of </ characters. This forces the decoder to repeatedly rescan the entire accumulated buffer. A 1MB maxFrameLength is enough to completely hang a server's thread while it loops endlessly.
Impact
Denial of Service via CPU Exhaustion. Any application utilizing Netty's XmlFrameDecoder is impacted. An unauthenticated remote attacker can exploit this flaw by sending a modest amount of malformed XML data to an exposed port.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 4.2.15.Final"
},
"package": {
"ecosystem": "Maven",
"name": "io.netty:netty-codec-xml"
},
"ranges": [
{
"events": [
{
"introduced": "4.2.0.Final"
},
{
"fixed": "4.2.16.Final"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 4.1.135.Final"
},
"package": {
"ecosystem": "Maven",
"name": "io.netty:netty-codec-xml"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.1.136.Final"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-73507"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2026-07-24T16:53:04Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "### Summary\nAn attacker can cause Denial of Service by sending a specially crafted malicious XML payload (e.g., repeated `\u003c/` characters) to a Netty server utilizing XmlFrameDecoder, causing the server\u0027s EventLoop thread to exhaust CPU resources and become unresponsive.\n\n### Details\n`io.netty.handler.codec.xml.XmlFrameDecoder` suffers from a vulnerability resulting in CPU exhaustion. When `\u003c` followed by `/` is encountered, the decoder scans the remaining buffer for a closing `\u003e`.\nBecause the parser state is not saved between `decode()` invocations, an attacker can trickle-feed a payload of `\u003c/` characters. This forces the decoder to repeatedly rescan the entire accumulated buffer. A 1MB `maxFrameLength` is enough to completely hang a server\u0027s thread while it loops endlessly.\n\n### Impact\nDenial of Service via CPU Exhaustion. Any application utilizing Netty\u0027s XmlFrameDecoder is impacted. An unauthenticated remote attacker can exploit this flaw by sending a modest amount of malformed XML data to an exposed port.",
"id": "GHSA-v74w-7mr3-4qg3",
"modified": "2026-08-13T14:25:43Z",
"published": "2026-07-24T16:53:04Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/netty/netty/security/advisories/GHSA-v74w-7mr3-4qg3"
},
{
"type": "WEB",
"url": "https://github.com/netty/netty/pull/17063"
},
{
"type": "WEB",
"url": "https://github.com/netty/netty/pull/17065"
},
{
"type": "WEB",
"url": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b"
},
{
"type": "WEB",
"url": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6"
},
{
"type": "PACKAGE",
"url": "https://github.com/netty/netty"
},
{
"type": "WEB",
"url": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final"
},
{
"type": "WEB",
"url": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Netty: Denial of Service in XmlFrameDecoder via CPU Exhaustion"
}
GHSA-V75F-3G6X-5HR3
Vulnerability from github – Published: 2022-05-13 01:52 – Updated: 2022-05-13 01:52phpFreeChat 1.7 and earlier allows remote attackers to cause a denial of service by sending a large number of connect commands.
{
"affected": [],
"aliases": [
"CVE-2018-5954"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-01-25T16:29:00Z",
"severity": "HIGH"
},
"details": "phpFreeChat 1.7 and earlier allows remote attackers to cause a denial of service by sending a large number of connect commands.",
"id": "GHSA-v75f-3g6x-5hr3",
"modified": "2022-05-13T01:52:59Z",
"published": "2022-05-13T01:52:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5954"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/43852"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/146037/PHPFreeChat-1.7-Denial-Of-Service.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-V7HC-87JC-QRRR
Vulnerability from github – Published: 2023-12-06 19:19 – Updated: 2023-12-06 19:19Impact
The eventing-github cluster-local server doesn't set ReadHeaderTimeout which could lead do a DDoS attack, where a large group of users send requests to the server causing the server to hang for long enough to deny it from being available to other users, also know as a Slowloris attack.
Patches
Fix in v1.12.1 and v1.11.3
Credits
The vulnerability was reported by Ada Logics during an ongoing security audit of Knative involving Ada Logics, the Knative maintainers, OSTIF and CNCF.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "knative.dev/eventing-github"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.39.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2023-12-06T19:19:35Z",
"nvd_published_at": null,
"severity": "LOW"
},
"details": "### Impact\n\nThe eventing-github cluster-local server doesn\u0027t set `ReadHeaderTimeout`\u202c\u202d which could lead do a DDoS\u202c \u202dattack, where a large group of users send requests to the server causing the server to hang\u202c \u202dfor long enough to deny it from being available to other users, also know as a Slowloris\u202c \u202dattack.\n\n### Patches\n\nFix in `v1.12.1` and `v1.11.3`\n\n### Credits\n\nThe vulnerability was reported by Ada Logics during an ongoing security audit of Knative involving Ada Logics, the Knative maintainers, OSTIF and CNCF.\n",
"id": "GHSA-v7hc-87jc-qrrr",
"modified": "2023-12-06T19:19:35Z",
"published": "2023-12-06T19:19:35Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/knative-extensions/eventing-github/security/advisories/GHSA-v7hc-87jc-qrrr"
},
{
"type": "WEB",
"url": "https://github.com/knative-extensions/eventing-github/pull/442"
},
{
"type": "WEB",
"url": "https://github.com/knative-extensions/eventing-github/pull/446"
},
{
"type": "WEB",
"url": "https://github.com/knative-extensions/eventing-github/pull/447"
},
{
"type": "WEB",
"url": "https://github.com/knative-extensions/eventing-github/commit/ea5cb8b25fc3410dde45ce2eb95454e4cfe77c40"
},
{
"type": "PACKAGE",
"url": "https://github.com/knative-extensions/eventing-github"
}
],
"schema_version": "1.4.0",
"severity": [],
"summary": "eventing-github vulnerable to denial of service caused by improper enforcement of the timeout on individual read operations"
}
GHSA-V7Q3-5RQM-X7M9
Vulnerability from github – Published: 2024-05-30 20:53 – Updated: 2024-06-28 16:18Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of CVE-2023-46104. This link is maintained to preserve external references.
Original Description
With correct CVE version ranges for affected Apache Superset.
Uncontrolled resource consumption can be triggered by authenticated attacker that uploads a malicious ZIP to import database, dashboards or datasets. This vulnerability exists in Apache Superset versions up to and including 2.1.2 and versions 3.0.0, 3.0.1.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "apache-superset"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "apache-superset"
},
"ranges": [
{
"events": [
{
"introduced": "3.0.0"
},
{
"fixed": "3.0.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-23952"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2024-06-03T16:17:47Z",
"nvd_published_at": "2024-02-14T12:15:47Z",
"severity": "MODERATE"
},
"details": "## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of CVE-2023-46104. This link is maintained to preserve external references.\n\n## Original Description\nWith correct CVE version ranges for affected Apache Superset.\n \nUncontrolled resource consumption can be triggered by authenticated attacker that uploads a malicious ZIP to import database, dashboards or datasets. \u00a0\nThis vulnerability exists in Apache Superset versions up to and including 2.1.2 and versions 3.0.0, 3.0.1.\n\n",
"id": "GHSA-v7q3-5rqm-x7m9",
"modified": "2024-06-28T16:18:04Z",
"published": "2024-05-30T20:53:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-23952"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread/zc58zvm4414molqn2m4d4vkrbrsxdksx"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2024/02/14/2"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2024/02/14/3"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Duplicate Advisory: Apache Superset uncontrolled resource consumption",
"withdrawn": "2024-06-03T16:17:47Z"
}
GHSA-V7Q8-3XV9-3HV4
Vulnerability from github – Published: 2024-06-27 21:32 – Updated: 2025-10-15 15:30A path traversal vulnerability exists in gaizhenbiao/chuanhuchatgpt version 20240410, allowing any user to delete other users' chat histories. This vulnerability can also be exploited to delete any files ending in .json on the target system, leading to a denial of service as users are unable to authenticate.
{
"affected": [],
"aliases": [
"CVE-2024-6090"
],
"database_specific": {
"cwe_ids": [
"CWE-22",
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-27T19:15:19Z",
"severity": "HIGH"
},
"details": "A path traversal vulnerability exists in gaizhenbiao/chuanhuchatgpt version 20240410, allowing any user to delete other users\u0027 chat histories. This vulnerability can also be exploited to delete any files ending in `.json` on the target system, leading to a denial of service as users are unable to authenticate.",
"id": "GHSA-v7q8-3xv9-3hv4",
"modified": "2025-10-15T15:30:20Z",
"published": "2024-06-27T21:32:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-6090"
},
{
"type": "WEB",
"url": "https://github.com/gaizhenbiao/chuanhuchatgpt/commit/526c615c437377ee9c71f866fd0f19011910f705"
},
{
"type": "WEB",
"url": "https://huntr.com/bounties/bd0f8f89-5c8a-4662-89aa-a6861d84cf4c"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-V7V5-MXJ3-9QMP
Vulnerability from github – Published: 2024-01-29 18:31 – Updated: 2024-09-06 00:31Vba32 Antivirus v3.36.0 is vulnerable to a Denial of Service vulnerability by triggering the 0x2220A7 IOCTL code of the Vba32m64.sys driver.
{
"affected": [],
"aliases": [
"CVE-2024-23441"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-400",
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-01-29T16:15:09Z",
"severity": "MODERATE"
},
"details": "Vba32 Antivirus v3.36.0 is vulnerable to a Denial of Service vulnerability by triggering the 0x2220A7 IOCTL code of the Vba32m64.sys driver.",
"id": "GHSA-v7v5-mxj3-9qmp",
"modified": "2024-09-06T00:31:19Z",
"published": "2024-01-29T18:31:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-23441"
},
{
"type": "WEB",
"url": "https://fluidattacks.com/advisories/rollins"
},
{
"type": "WEB",
"url": "https://www.anti-virus.by/vba32"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-V7W3-W4C9-JC27
Vulnerability from github – Published: 2022-05-13 01:36 – Updated: 2022-05-13 01:36A Junos device with VPLS routing-instances configured on one or more interfaces may be susceptible to an mbuf leak when processing a specific MPLS packet. Approximately 1 mbuf is leaked per each packet processed. The number of mbufs is platform dependent. The following command provides the number of mbufs that are currently in use and maximum number of mbufs that can be allocated on a platform: > show system buffers 2437/3143/5580 mbufs in use (current/cache/total) Once the device runs out of mbufs it will become inaccessible and a restart will be required. This issue only affects end devices, transit devices are not affected. Affected releases are Juniper Networks Junos OS with VPLS configured running: 12.1X46 versions prior to 12.1X46-D76; 12.3X48 versions prior to 12.3X48-D66, 12.3X48-D70; 14.1 versions prior to 14.1R9; 14.1X53 versions prior to 14.1X53-D47; 14.2 versions prior to 14.2R8; 15.1 versions prior to 15.1F2-S19, 15.1F6-S10, 15.1R4-S9, 15.1R5-S7, 15.1R6-S4, 15.1R7; 15.1X49 versions prior to 15.1X49-D131, 15.1X49-D140; 15.1X53 versions prior to 15.1X53-D58 on EX2300/EX3400; 15.1X53 versions prior to 15.1X53-D233 on QFX5200/QFX5110; 15.1X53 versions prior to 15.1X53-D471 on NFX; 15.1X53 versions prior to 15.1X53-D66 on QFX10; 16.1 versions prior to 16.1R3-S8, 16.1R4-S6, 16.1R5; 16.2 versions prior to 16.2R1-S6, 16.2R2-S5, 16.2R3; 17.1 versions prior to 17.1R1-S7, 17.1R2-S6, 17.1R3; 17.2 versions prior to 17.2R1-S5, 17.2R2.
{
"affected": [],
"aliases": [
"CVE-2018-0022"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-04-11T19:29:00Z",
"severity": "HIGH"
},
"details": "A Junos device with VPLS routing-instances configured on one or more interfaces may be susceptible to an mbuf leak when processing a specific MPLS packet. Approximately 1 mbuf is leaked per each packet processed. The number of mbufs is platform dependent. The following command provides the number of mbufs that are currently in use and maximum number of mbufs that can be allocated on a platform: \u003e show system buffers 2437/3143/5580 mbufs in use (current/cache/total) Once the device runs out of mbufs it will become inaccessible and a restart will be required. This issue only affects end devices, transit devices are not affected. Affected releases are Juniper Networks Junos OS with VPLS configured running: 12.1X46 versions prior to 12.1X46-D76; 12.3X48 versions prior to 12.3X48-D66, 12.3X48-D70; 14.1 versions prior to 14.1R9; 14.1X53 versions prior to 14.1X53-D47; 14.2 versions prior to 14.2R8; 15.1 versions prior to 15.1F2-S19, 15.1F6-S10, 15.1R4-S9, 15.1R5-S7, 15.1R6-S4, 15.1R7; 15.1X49 versions prior to 15.1X49-D131, 15.1X49-D140; 15.1X53 versions prior to 15.1X53-D58 on EX2300/EX3400; 15.1X53 versions prior to 15.1X53-D233 on QFX5200/QFX5110; 15.1X53 versions prior to 15.1X53-D471 on NFX; 15.1X53 versions prior to 15.1X53-D66 on QFX10; 16.1 versions prior to 16.1R3-S8, 16.1R4-S6, 16.1R5; 16.2 versions prior to 16.2R1-S6, 16.2R2-S5, 16.2R3; 17.1 versions prior to 17.1R1-S7, 17.1R2-S6, 17.1R3; 17.2 versions prior to 17.2R1-S5, 17.2R2.",
"id": "GHSA-v7w3-w4c9-jc27",
"modified": "2022-05-13T01:36:01Z",
"published": "2022-05-13T01:36:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-0022"
},
{
"type": "WEB",
"url": "https://kb.juniper.net/JSA10855"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/103740"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1040790"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Design throttling mechanisms into the system architecture. The best protection is to limit the amount of resources that an unauthorized user can cause to be expended. A strong authentication and access control model will help prevent such attacks from occurring in the first place. The login application should be protected against DoS attacks as much as possible. Limiting the database access, perhaps by caching result sets, can help minimize the resources expended. To further limit the potential for a DoS attack, consider tracking the rate of requests received from users and blocking requests that exceed a defined rate threshold.
Mitigation
- Mitigation of resource exhaustion attacks requires that the target system either:
- The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.
- The second solution is simply difficult to effectively institute -- and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.
- recognizes the attack and denies that user further access for a given amount of time, or
- uniformly throttles all requests in order to make it more difficult to consume resources more quickly than they can again be freed.
Mitigation
Ensure that protocols have specific limits of scale placed on them.
Mitigation
Ensure that all failures in resource allocation place the system into a safe posture.
CAPEC-147: XML Ping of the Death
An attacker initiates a resource depletion attack where a large number of small XML messages are delivered at a sufficiently rapid rate to cause a denial of service or crash of the target. Transactions such as repetitive SOAP transactions can deplete resources faster than a simple flooding attack because of the additional resources used by the SOAP protocol and the resources necessary to process SOAP messages. The transactions used are immaterial as long as they cause resource utilization on the target. In other words, this is a normal flooding attack augmented by using messages that will require extra processing on the target.
CAPEC-227: Sustained Client Engagement
An adversary attempts to deny legitimate users access to a resource by continually engaging a specific resource in an attempt to keep the resource tied up as long as possible. The adversary's primary goal is not to crash or flood the target, which would alert defenders; rather it is to repeatedly perform actions or abuse algorithmic flaws such that a given resource is tied up and not available to a legitimate user. By carefully crafting a requests that keep the resource engaged through what is seemingly benign requests, legitimate users are limited or completely denied access to the resource.
CAPEC-492: Regular Expression Exponential Blowup
An adversary may execute an attack on a program that uses a poor Regular Expression(Regex) implementation by choosing input that results in an extreme situation for the Regex. A typical extreme situation operates at exponential time compared to the input size. This is due to most implementations using a Nondeterministic Finite Automaton(NFA) state machine to be built by the Regex algorithm since NFA allows backtracking and thus more complex regular expressions.