CVE-2021-36980

medium
New! CVE Severity Now Using CVSS v3

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Description

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

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

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

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

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

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

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

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

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

Details

Source: MITRE

Published: 2021-07-20

Updated: 2021-07-28

Type: CWE-416

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:* versions from 2.11.0 to 2.15.0 (inclusive)

Tenable Plugins

View all (2 total)

IDNameProductFamilySeverity
154333RHEL 7 : openvswitch2.11 (RHSA-2021:3942)NessusRed Hat Local Security Checks
medium
153145Ubuntu 20.04 LTS / 21.04 : Open vSwitch vulnerability (USN-5065-1)NessusUbuntu Local Security Checks
medium