CVE-2021-36980

low-risk

Published 2021-07-20

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.

Do I need to act?

0.08% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (1)

Openvswitch

Affected Vendors

Openvswitch

References (18)

Patch https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27851

Third Party Advisory https://github.com/google/oss-fuzz-vulns/blob/main/vulns/openvswitch/OSV-2020-21...

Patch https://github.com/openvswitch/ovs/commit/38744b1bcb022c611712527f039722115300f5...

Patch https://github.com/openvswitch/ovs/commit/65c61b0c23a0d474696d7b1cea522a5016a8ae...

Patch https://github.com/openvswitch/ovs/commit/6d67310f4d2524b466b98f05ebccc1add1e8cf...

Patch https://github.com/openvswitch/ovs/commit/77cccc74deede443e8b9102299efc869a52b65...

Patch https://github.com/openvswitch/ovs/commit/8ce8dc34b5f73b30ce0c1869af9947013c3c65...

Patch https://github.com/openvswitch/ovs/commit/9926637a80d0d243dbf9c49761046895e9d1a8...

https://security.gentoo.org/glsa/202311-16