Use After Free The advisory has been revoked - it doesn't affect any version of package openvswitch (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-OPENVSWITCH-1320313
- published21 Jul 2021
- disclosed20 Jul 2021
Introduced: 20 Jul 2021
CVE-2021-36980 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:18.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream openvswitch package and not the openvswitch package as distributed by Ubuntu.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2021-36980
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27851
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/openvswitch/OSV-2020-2197.yaml
- https://github.com/openvswitch/ovs/commit/38744b1bcb022c611712527f039722115300f58f
- https://github.com/openvswitch/ovs/commit/65c61b0c23a0d474696d7b1cea522a5016a8aeb3
- https://github.com/openvswitch/ovs/commit/6d67310f4d2524b466b98f05ebccc1add1e8cf35
- https://github.com/openvswitch/ovs/commit/77cccc74deede443e8b9102299efc869a52b65b2
- https://github.com/openvswitch/ovs/commit/8ce8dc34b5f73b30ce0c1869af9947013c3c6575
- https://github.com/openvswitch/ovs/commit/9926637a80d0d243dbf9c49761046895e9d1a8e2
- https://security.gentoo.org/glsa/202311-16