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CVE-2021-36980

Publication date 20 July 2021

Last updated 24 July 2024


Ubuntu priority

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
openvswitch 22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Fixed 2.15.0-0ubuntu3.1
20.10 groovy Ignored end of life
20.04 LTS focal
Fixed 2.13.3-0ubuntu0.20.04.2
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release

Notes


mdeslaur

per Google, this was introduced in 418a7a84245f5fbe589dd1267463fc9ba27a1dd6

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
openvswitch

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-5065-1
    • Open vSwitch vulnerability
    • 8 September 2021

Other references