Use After Free Affecting openvswitch package, versions <2.12.3-r2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.18% (64th percentile)

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  • Snyk IDSNYK-ALPINE324-OPENVSWITCH-17302367
  • published11 Jun 2026
  • disclosed20 Jul 2021

Introduced: 20 Jul 2021

CVE-2021-36980  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Alpine:3.24 openvswitch to version 2.12.3-r2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openvswitch package and not the openvswitch package as distributed by Alpine. See How to fix? for Alpine:3.24 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1