CVE-2021-36980

2021-07-2000:00:00

ubuntu.com

open vswitch

use-after-free vulnerability

decode_nxast_raw_encap

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

51.1%

JSON

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.

Bugs

Notes

Author	Note
mdeslaur	per Google, this was introduced in 418a7a84245f5fbe589dd1267463fc9ba27a1dd6

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchopenvswitch< 2.13.3-0ubuntu0.20.04.2UNKNOWN
ubuntu21.04noarchopenvswitch< 2.15.0-0ubuntu3.1UNKNOWN