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44 vulnerabilities found for openvswitch by openvswitch
CVE-2023-3966 (GCVE-0-2023-3966)
Vulnerability from nvd – Published: 2024-02-22 12:15 – Updated: 2025-02-13 17:03
VLAI
EPSS
VEX
Title
Openvswsitch: ovs-vswitch fails to recover after malformed geneve metadata packet
Summary
A flaw was found in Open vSwitch where multiple versions are vulnerable to crafted Geneve packets, which may result in a denial of service and invalid memory accesses. Triggering this issue requires that hardware offloading via the netlink path is enabled.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-22 15:42 UTC
CWE
- CWE-248 - Uncaught Exception
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2023-3966 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2178363 | issue-trackingx_refsource_REDHAT |
| https://lists.fedoraproject.org/archives/list/pac… | |
| https://lists.fedoraproject.org/archives/list/pac… |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | openvswitch |
Unaffected:
3.1.0
|
|
| Red Hat | Fast Datapath for RHEL 7 |
cpe:/o:redhat:enterprise_linux:7::fastdatapath
|
|
| Red Hat | Fast Datapath for RHEL 8 |
cpe:/o:redhat:enterprise_linux:8::fastdatapath
|
|
| Red Hat | Fast Datapath for RHEL 9 |
cpe:/o:redhat:enterprise_linux:9::fastdatapath
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat OpenShift Container Platform 3.11 |
cpe:/a:redhat:openshift:3.11
|
|
| RDO | OpenStack RDO | ||
| Fedora | Fedora |
Date Public
2024-02-08 00:00
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CVE-2024-22563 (GCVE-0-2024-22563)
Vulnerability from nvd – Published: 2024-01-19 00:00 – Updated: 2025-06-02 15:02
VLAI
EPSS
VEX
Summary
openvswitch 2.17.8 was discovered to contain a memory leak via the function xmalloc__ in openvswitch-2.17.8/lib/util.c.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-02 14:11 UTC
CWE
- n/a
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
1 reference
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CVE-2023-5366 (GCVE-0-2023-5366)
Vulnerability from nvd – Published: 2023-10-06 17:43 – Updated: 2025-02-13 17:20
VLAI
EPSS
VEX
Title
Openvswitch don't match packets on nd_target field
Summary
A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.
Severity
7.1 (High)
CWE
- CWE-345 - Insufficient Verification of Data Authenticity
Assigner
References
6 references
Impacted products
11 products
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | openvswitch | ||
| Red Hat | Fast Datapath for RHEL 7 |
cpe:/o:redhat:enterprise_linux:7::fastdatapath
|
|
| Red Hat | Fast Datapath for RHEL 8 |
cpe:/o:redhat:enterprise_linux:8::fastdatapath
|
|
| Red Hat | Fast Datapath for RHEL 9 |
cpe:/o:redhat:enterprise_linux:9::fastdatapath
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat OpenShift Container Platform 3.11 |
cpe:/a:redhat:openshift:3.11
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat OpenStack Platform 16.1 |
cpe:/a:redhat:openstack:16.1
|
|
| Red Hat | Red Hat OpenStack Platform 16.2 |
cpe:/a:redhat:openstack:16.2
|
|
| Red Hat | Red Hat Virtualization 4 |
cpe:/:redhat:enterprise_linux:::hypervisor
|
|
| Fedora | Fedora |
Date Public
2023-09-26 00:00
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CVE-2022-4338 (GCVE-0-2022-4338)
Vulnerability from nvd – Published: 2023-01-10 00:00 – Updated: 2024-08-03 01:34
VLAI
EPSS
VEX
Summary
An integer underflow in Organization Specific TLV was found in various versions of OpenvSwitch.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | openvswitch |
Affected:
openvswitch 3.0.3, openvswitch 2.17.5, openvswitch 2.16.6, openvswitch 2.15.7, openvswitch 2.14.8, openvswitch 2.13.10
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CVE-2022-4337 (GCVE-0-2022-4337)
Vulnerability from nvd – Published: 2023-01-10 00:00 – Updated: 2024-08-03 01:34
VLAI
EPSS
VEX
Summary
An out-of-bounds read in Organization Specific TLV was found in various versions of OpenvSwitch.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | openvswitch |
Affected:
openvswitch 3.0.3, openvswitch 2.17.5, openvswitch 2.16.6, openvswitch 2.15.7, openvswitch 2.14.8, openvswitch 2.13.10
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CVE-2019-25076 (GCVE-0-2019-25076)
Vulnerability from nvd – Published: 2022-09-08 22:08 – Updated: 2024-08-05 03:00
VLAI
EPSS
VEX
Summary
The TSS (Tuple Space Search) algorithm in Open vSwitch 2.x through 2.17.2 and 3.0.0 allows remote attackers to cause a denial of service (delays of legitimate traffic) via crafted packet data that requires excessive evaluation time within the packet classification algorithm for the MegaFlow cache, aka a Tuple Space Explosion (TSE) attack.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://sites.google.com/view/tuple-space-explosion | x_refsource_MISC |
| https://dl.acm.org/citation.cfm?doid=3359989.3365431 | x_refsource_MISC |
| https://arxiv.org/abs/2011.09107 | x_refsource_MISC |
| https://www.youtube.com/watch?v=DSC3m-Bww64 | x_refsource_MISC |
| https://www.youtube.com/watch?v=5cHpzVK0D28 | x_refsource_MISC |
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CVE-2022-0669 (GCVE-0-2022-0669)
Vulnerability from nvd – Published: 2022-08-29 14:03 – Updated: 2024-08-02 23:32
VLAI
EPSS
VEX
Summary
A flaw was found in dpdk. This flaw allows a malicious vhost-user master to attach an unexpected number of fds as ancillary data to VHOST_USER_GET_INFLIGHT_FD / VHOST_USER_SET_INFLIGHT_FD messages that are not closed by the vhost-user slave. By sending such messages continuously, the vhost-user master exhausts available fd in the vhost-user slave process, leading to a denial of service.
Severity
No CVSS data available.
CWE
- CWE-400 - - Uncontrolled Resource Consumption.
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2055793 | x_refsource_MISC |
| https://bugs.dpdk.org/show_bug.cgi?id=922 | x_refsource_MISC |
| https://github.com/DPDK/dpdk/commit/af74f7db384ed… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2022-0669 | x_refsource_MISC |
| https://security-tracker.debian.org/tracker/CVE-2… | x_refsource_MISC |
Impacted products
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CVE-2021-3905 (GCVE-0-2021-3905)
Vulnerability from nvd – Published: 2022-08-23 00:00 – Updated: 2024-08-03 17:09
VLAI
EPSS
VEX
Summary
A memory leak was found in Open vSwitch (OVS) during userspace IP fragmentation processing. An attacker could use this flaw to potentially exhaust available memory by keeping sending packet fragments.
Severity
No CVSS data available.
CWE
- CWE-401 - - Missing Release of Memory after Effective Lifetime
Assigner
References
6 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | openvswitch (ovs) |
Affected:
Fixed in v2.17.0
|
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CVE-2021-36980 (GCVE-0-2021-36980)
Vulnerability from nvd – Published: 2021-07-20 00:00 – Updated: 2025-05-05 16:46
VLAI
EPSS
VEX
Summary
Open vSwitch (aka openvswitch) 2.11.0 through 2.15.0 has a use-after-free in decode_NXAST_RAW_ENCAP (called from ofpact_decode and ofpacts_decode) during the decoding of a RAW_ENCAP action.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 13:22 UTC
CWE
- n/a
- CWE-416 - Use After Free
Assigner
References
9 references
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CVE-2020-27827 (GCVE-0-2020-27827)
Vulnerability from nvd – Published: 2021-03-18 00:00 – Updated: 2025-12-03 18:20
VLAI
EPSS
VEX
Summary
A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-04 13:38 UTC
CWE
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | lldp/openvswitch |
Affected:
lldpd 1.0.8, openvswitch 2.14.1, openvswitch 2.13.2, openvswitch 2.12.2, openvswitch 2.11.5, openvswitch 2.10.6, openvswitch 2.9.8, openvswitch 2.8.10, openvswitch 2.7.12, openvswitch 2.6.9
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CVE-2020-35498 (GCVE-0-2020-35498)
Vulnerability from nvd – Published: 2021-02-11 00:00 – Updated: 2025-04-23 19:46
VLAI
EPSS
VEX
Summary
A vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing can allow a malicious user to send a specially crafted packet causing the resulting megaflow in the kernel to be too wide, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 13:27 UTC
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1908845 | |
| https://www.openwall.com/lists/oss-security/2021/… | |
| https://www.debian.org/security/2021/dsa-4852 | vendor-advisory |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-list |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://security.gentoo.org/glsa/202311-16 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | openvswitch |
Affected:
openvswitch 2.5.12, openvswitch 2.6.10, openvswitch 2.7.13, openvswitch 2.8.11, openvswitch 2.9.9, openvswitch 2.10.7, openvswitch 2.11.6, openvswitch 2.12.3, openvswitch 2.13.3, openvswitch 2.14.2
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CVE-2018-17206 (GCVE-0-2018-17206)
Vulnerability from nvd – Published: 2018-09-19 16:00 – Updated: 2024-08-05 10:47
VLAI
EPSS
VEX
Summary
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6. The decode_bundle function inside lib/ofp-actions.c is affected by a buffer over-read issue during BUNDLE action decoding.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2019:0053 | vendor-advisoryx_refsource_REDHAT |
| https://usn.ubuntu.com/3873-1/ | vendor-advisoryx_refsource_UBUNTU |
| https://access.redhat.com/errata/RHSA-2018:3500 | vendor-advisoryx_refsource_REDHAT |
| https://github.com/openvswitch/ovs/commit/9237a63… | x_refsource_MISC |
| https://access.redhat.com/errata/RHSA-2019:0081 | vendor-advisoryx_refsource_REDHAT |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
Date Public
2018-09-19 00:00
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CVE-2018-17205 (GCVE-0-2018-17205)
Vulnerability from nvd – Published: 2018-09-19 16:00 – Updated: 2024-08-05 10:47
VLAI
EPSS
VEX
Summary
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting ofproto_rule_insert__ in ofproto/ofproto.c. During bundle commit, flows that are added in a bundle are applied to ofproto in order. If a flow cannot be added (e.g., the flow action is a go-to for a group id that does not exist), OvS tries to revert back all previous flows that were successfully applied from the same bundle. This is possible since OvS maintains list of old flows that were replaced by flows from the bundle. While reinserting old flows, OvS has an assertion failure due to a check on rule state != RULE_INITIALIZED. This would work for new flows, but for an old flow the rule state is RULE_REMOVED. The assertion failure causes an OvS crash.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2019:0053 | vendor-advisoryx_refsource_REDHAT |
| https://usn.ubuntu.com/3873-1/ | vendor-advisoryx_refsource_UBUNTU |
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Date Public
2018-09-19 00:00
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CVE-2018-17204 (GCVE-0-2018-17204)
Vulnerability from nvd – Published: 2018-09-19 16:00 – Updated: 2024-08-05 10:47
VLAI
EPSS
VEX
Summary
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting parse_group_prop_ntr_selection_method in lib/ofp-util.c. When decoding a group mod, it validates the group type and command after the whole group mod has been decoded. The OF1.5 decoder, however, tries to use the type and command earlier, when it might still be invalid. This causes an assertion failure (via OVS_NOT_REACHED). ovs-vswitchd does not enable support for OpenFlow 1.5 by default.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2019:0053 | vendor-advisoryx_refsource_REDHAT |
| https://usn.ubuntu.com/3873-1/ | vendor-advisoryx_refsource_UBUNTU |
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| https://github.com/openvswitch/ovs/commit/4af6da3… | x_refsource_MISC |
| https://access.redhat.com/errata/RHSA-2019:0081 | vendor-advisoryx_refsource_REDHAT |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
Date Public
2018-09-19 00:00
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CVE-2017-14970 (GCVE-0-2017-14970)
Vulnerability from nvd – Published: 2017-10-01 20:00 – Updated: 2024-08-05 19:42
VLAI
EPSS
VEX
Summary
In lib/ofp-util.c in Open vSwitch (OvS) before 2.8.1, there are multiple memory leaks while parsing malformed OpenFlow group mod messages. NOTE: the vendor disputes the relevance of this report, stating "it can only be triggered by an OpenFlow controller, but OpenFlow controllers have much more direct and powerful ways to force Open vSwitch to allocate memory, such as by inserting flows into the flow table."
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://mail.openvswitch.org/pipermail/ovs-dev/20… | x_refsource_CONFIRM |
| https://mail.openvswitch.org/pipermail/ovs-dev/20… | x_refsource_CONFIRM |
Date Public
2017-10-01 00:00
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CVE-2023-3966 (GCVE-0-2023-3966)
Vulnerability from cvelistv5 – Published: 2024-02-22 12:15 – Updated: 2025-02-13 17:03
VLAI
EPSS
VEX
Title
Openvswsitch: ovs-vswitch fails to recover after malformed geneve metadata packet
Summary
A flaw was found in Open vSwitch where multiple versions are vulnerable to crafted Geneve packets, which may result in a denial of service and invalid memory accesses. Triggering this issue requires that hardware offloading via the netlink path is enabled.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-22 15:42 UTC
CWE
- CWE-248 - Uncaught Exception
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2023-3966 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2178363 | issue-trackingx_refsource_REDHAT |
| https://lists.fedoraproject.org/archives/list/pac… | |
| https://lists.fedoraproject.org/archives/list/pac… |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | openvswitch |
Unaffected:
3.1.0
|
|
| Red Hat | Fast Datapath for RHEL 7 |
cpe:/o:redhat:enterprise_linux:7::fastdatapath
|
|
| Red Hat | Fast Datapath for RHEL 8 |
cpe:/o:redhat:enterprise_linux:8::fastdatapath
|
|
| Red Hat | Fast Datapath for RHEL 9 |
cpe:/o:redhat:enterprise_linux:9::fastdatapath
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat OpenShift Container Platform 3.11 |
cpe:/a:redhat:openshift:3.11
|
|
| RDO | OpenStack RDO | ||
| Fedora | Fedora |
Date Public
2024-02-08 00:00
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CVE-2024-22563 (GCVE-0-2024-22563)
Vulnerability from cvelistv5 – Published: 2024-01-19 00:00 – Updated: 2025-06-02 15:02
VLAI
EPSS
VEX
Summary
openvswitch 2.17.8 was discovered to contain a memory leak via the function xmalloc__ in openvswitch-2.17.8/lib/util.c.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-02 14:11 UTC
CWE
- n/a
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
1 reference
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CVE-2023-5366 (GCVE-0-2023-5366)
Vulnerability from cvelistv5 – Published: 2023-10-06 17:43 – Updated: 2025-02-13 17:20
VLAI
EPSS
VEX
Title
Openvswitch don't match packets on nd_target field
Summary
A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses.
Severity
7.1 (High)
CWE
- CWE-345 - Insufficient Verification of Data Authenticity
Assigner
References
6 references
Impacted products
11 products
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | openvswitch | ||
| Red Hat | Fast Datapath for RHEL 7 |
cpe:/o:redhat:enterprise_linux:7::fastdatapath
|
|
| Red Hat | Fast Datapath for RHEL 8 |
cpe:/o:redhat:enterprise_linux:8::fastdatapath
|
|
| Red Hat | Fast Datapath for RHEL 9 |
cpe:/o:redhat:enterprise_linux:9::fastdatapath
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat OpenShift Container Platform 3.11 |
cpe:/a:redhat:openshift:3.11
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat OpenStack Platform 16.1 |
cpe:/a:redhat:openstack:16.1
|
|
| Red Hat | Red Hat OpenStack Platform 16.2 |
cpe:/a:redhat:openstack:16.2
|
|
| Red Hat | Red Hat Virtualization 4 |
cpe:/:redhat:enterprise_linux:::hypervisor
|
|
| Fedora | Fedora |
Date Public
2023-09-26 00:00
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CVE-2022-4338 (GCVE-0-2022-4338)
Vulnerability from cvelistv5 – Published: 2023-01-10 00:00 – Updated: 2024-08-03 01:34
VLAI
EPSS
VEX
Summary
An integer underflow in Organization Specific TLV was found in various versions of OpenvSwitch.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | openvswitch |
Affected:
openvswitch 3.0.3, openvswitch 2.17.5, openvswitch 2.16.6, openvswitch 2.15.7, openvswitch 2.14.8, openvswitch 2.13.10
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CVE-2022-4337 (GCVE-0-2022-4337)
Vulnerability from cvelistv5 – Published: 2023-01-10 00:00 – Updated: 2024-08-03 01:34
VLAI
EPSS
VEX
Summary
An out-of-bounds read in Organization Specific TLV was found in various versions of OpenvSwitch.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | openvswitch |
Affected:
openvswitch 3.0.3, openvswitch 2.17.5, openvswitch 2.16.6, openvswitch 2.15.7, openvswitch 2.14.8, openvswitch 2.13.10
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CVE-2019-25076 (GCVE-0-2019-25076)
Vulnerability from cvelistv5 – Published: 2022-09-08 22:08 – Updated: 2024-08-05 03:00
VLAI
EPSS
VEX
Summary
The TSS (Tuple Space Search) algorithm in Open vSwitch 2.x through 2.17.2 and 3.0.0 allows remote attackers to cause a denial of service (delays of legitimate traffic) via crafted packet data that requires excessive evaluation time within the packet classification algorithm for the MegaFlow cache, aka a Tuple Space Explosion (TSE) attack.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://sites.google.com/view/tuple-space-explosion | x_refsource_MISC |
| https://dl.acm.org/citation.cfm?doid=3359989.3365431 | x_refsource_MISC |
| https://arxiv.org/abs/2011.09107 | x_refsource_MISC |
| https://www.youtube.com/watch?v=DSC3m-Bww64 | x_refsource_MISC |
| https://www.youtube.com/watch?v=5cHpzVK0D28 | x_refsource_MISC |
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CVE-2022-0669 (GCVE-0-2022-0669)
Vulnerability from cvelistv5 – Published: 2022-08-29 14:03 – Updated: 2024-08-02 23:32
VLAI
EPSS
VEX
Summary
A flaw was found in dpdk. This flaw allows a malicious vhost-user master to attach an unexpected number of fds as ancillary data to VHOST_USER_GET_INFLIGHT_FD / VHOST_USER_SET_INFLIGHT_FD messages that are not closed by the vhost-user slave. By sending such messages continuously, the vhost-user master exhausts available fd in the vhost-user slave process, leading to a denial of service.
Severity
No CVSS data available.
CWE
- CWE-400 - - Uncontrolled Resource Consumption.
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2055793 | x_refsource_MISC |
| https://bugs.dpdk.org/show_bug.cgi?id=922 | x_refsource_MISC |
| https://github.com/DPDK/dpdk/commit/af74f7db384ed… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2022-0669 | x_refsource_MISC |
| https://security-tracker.debian.org/tracker/CVE-2… | x_refsource_MISC |
Impacted products
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CVE-2021-3905 (GCVE-0-2021-3905)
Vulnerability from cvelistv5 – Published: 2022-08-23 00:00 – Updated: 2024-08-03 17:09
VLAI
EPSS
VEX
Summary
A memory leak was found in Open vSwitch (OVS) during userspace IP fragmentation processing. An attacker could use this flaw to potentially exhaust available memory by keeping sending packet fragments.
Severity
No CVSS data available.
CWE
- CWE-401 - - Missing Release of Memory after Effective Lifetime
Assigner
References
6 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | openvswitch (ovs) |
Affected:
Fixed in v2.17.0
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CVE-2021-36980 (GCVE-0-2021-36980)
Vulnerability from cvelistv5 – Published: 2021-07-20 00:00 – Updated: 2025-05-05 16:46
VLAI
EPSS
VEX
Summary
Open vSwitch (aka openvswitch) 2.11.0 through 2.15.0 has a use-after-free in decode_NXAST_RAW_ENCAP (called from ofpact_decode and ofpacts_decode) during the decoding of a RAW_ENCAP action.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 13:22 UTC
CWE
- n/a
- CWE-416 - Use After Free
Assigner
References
9 references
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CVE-2020-27827 (GCVE-0-2020-27827)
Vulnerability from cvelistv5 – Published: 2021-03-18 00:00 – Updated: 2025-12-03 18:20
VLAI
EPSS
VEX
Summary
A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-04 13:38 UTC
CWE
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | lldp/openvswitch |
Affected:
lldpd 1.0.8, openvswitch 2.14.1, openvswitch 2.13.2, openvswitch 2.12.2, openvswitch 2.11.5, openvswitch 2.10.6, openvswitch 2.9.8, openvswitch 2.8.10, openvswitch 2.7.12, openvswitch 2.6.9
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CVE-2020-35498 (GCVE-0-2020-35498)
Vulnerability from cvelistv5 – Published: 2021-02-11 00:00 – Updated: 2025-04-23 19:46
VLAI
EPSS
VEX
Summary
A vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing can allow a malicious user to send a specially crafted packet causing the resulting megaflow in the kernel to be too wide, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 13:27 UTC
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1908845 | |
| https://www.openwall.com/lists/oss-security/2021/… | |
| https://www.debian.org/security/2021/dsa-4852 | vendor-advisory |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-list |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://security.gentoo.org/glsa/202311-16 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | openvswitch |
Affected:
openvswitch 2.5.12, openvswitch 2.6.10, openvswitch 2.7.13, openvswitch 2.8.11, openvswitch 2.9.9, openvswitch 2.10.7, openvswitch 2.11.6, openvswitch 2.12.3, openvswitch 2.13.3, openvswitch 2.14.2
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CVE-2018-17205 (GCVE-0-2018-17205)
Vulnerability from cvelistv5 – Published: 2018-09-19 16:00 – Updated: 2024-08-05 10:47
VLAI
EPSS
VEX
Summary
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting ofproto_rule_insert__ in ofproto/ofproto.c. During bundle commit, flows that are added in a bundle are applied to ofproto in order. If a flow cannot be added (e.g., the flow action is a go-to for a group id that does not exist), OvS tries to revert back all previous flows that were successfully applied from the same bundle. This is possible since OvS maintains list of old flows that were replaced by flows from the bundle. While reinserting old flows, OvS has an assertion failure due to a check on rule state != RULE_INITIALIZED. This would work for new flows, but for an old flow the rule state is RULE_REMOVED. The assertion failure causes an OvS crash.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2019:0053 | vendor-advisoryx_refsource_REDHAT |
| https://usn.ubuntu.com/3873-1/ | vendor-advisoryx_refsource_UBUNTU |
| https://access.redhat.com/errata/RHSA-2018:3500 | vendor-advisoryx_refsource_REDHAT |
| https://github.com/openvswitch/ovs/commit/0befd1f… | x_refsource_MISC |
| https://access.redhat.com/errata/RHSA-2019:0081 | vendor-advisoryx_refsource_REDHAT |
Date Public
2018-09-19 00:00
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CVE-2018-17206 (GCVE-0-2018-17206)
Vulnerability from cvelistv5 – Published: 2018-09-19 16:00 – Updated: 2024-08-05 10:47
VLAI
EPSS
VEX
Summary
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6. The decode_bundle function inside lib/ofp-actions.c is affected by a buffer over-read issue during BUNDLE action decoding.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2019:0053 | vendor-advisoryx_refsource_REDHAT |
| https://usn.ubuntu.com/3873-1/ | vendor-advisoryx_refsource_UBUNTU |
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Date Public
2018-09-19 00:00
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CVE-2018-17204 (GCVE-0-2018-17204)
Vulnerability from cvelistv5 – Published: 2018-09-19 16:00 – Updated: 2024-08-05 10:47
VLAI
EPSS
VEX
Summary
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting parse_group_prop_ntr_selection_method in lib/ofp-util.c. When decoding a group mod, it validates the group type and command after the whole group mod has been decoded. The OF1.5 decoder, however, tries to use the type and command earlier, when it might still be invalid. This causes an assertion failure (via OVS_NOT_REACHED). ovs-vswitchd does not enable support for OpenFlow 1.5 by default.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2019:0053 | vendor-advisoryx_refsource_REDHAT |
| https://usn.ubuntu.com/3873-1/ | vendor-advisoryx_refsource_UBUNTU |
| https://access.redhat.com/errata/RHSA-2018:3500 | vendor-advisoryx_refsource_REDHAT |
| https://github.com/openvswitch/ovs/commit/4af6da3… | x_refsource_MISC |
| https://access.redhat.com/errata/RHSA-2019:0081 | vendor-advisoryx_refsource_REDHAT |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
Date Public
2018-09-19 00:00
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CVE-2017-14970 (GCVE-0-2017-14970)
Vulnerability from cvelistv5 – Published: 2017-10-01 20:00 – Updated: 2024-08-05 19:42
VLAI
EPSS
VEX
Summary
In lib/ofp-util.c in Open vSwitch (OvS) before 2.8.1, there are multiple memory leaks while parsing malformed OpenFlow group mod messages. NOTE: the vendor disputes the relevance of this report, stating "it can only be triggered by an OpenFlow controller, but OpenFlow controllers have much more direct and powerful ways to force Open vSwitch to allocate memory, such as by inserting flows into the flow table."
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://mail.openvswitch.org/pipermail/ovs-dev/20… | x_refsource_CONFIRM |
| https://mail.openvswitch.org/pipermail/ovs-dev/20… | x_refsource_CONFIRM |
Date Public
2017-10-01 00:00
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