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CVE-2021-36980

Date: July 19, 2021

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.

Language: C

Severity Score

5.5

Related Resources (14)

Url: https://github.com/google/oss-fuzz-vulns/blob/main/vulns/openvswitch/OSV-2020-2197.yaml

Url: https://github.com/openvswitch/ovs/commit/8ce8dc34b5f73b30ce0c1869af9947013c3c6575

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-36980

Url: https://security.alpinelinux.org/vuln/CVE-2021-36980

Url: https://github.com/openvswitch/ovs/commit/65c61b0c23a0d474696d7b1cea522a5016a8aeb3

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

Url: https://github.com/openvswitch/ovs/commit/77cccc74deede443e8b9102299efc869a52b65b2

Url: https://github.com/openvswitch/ovs/commit/6d67310f4d2524b466b98f05ebccc1add1e8cf35

Url: https://github.com/openvswitch/ovs/commit/38744b1bcb022c611712527f039722115300f58f

Url: https://security-tracker.debian.org/tracker/CVE-2021-36980

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-36980

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

Url: https://github.com/openvswitch/ovs/commit/9926637a80d0d243dbf9c49761046895e9d1a8e2

Url: https://www.mend.io/vulnerability-database/CVE-2021-36980

Severity Score

5.5

Weakness Type (CWE)

Use After Free

CWE-416

CVSS v3.1

Base Score:	5.5
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	REQUIRED
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	4.3
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	PARTIAL
Additional information:

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