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CVE-2021-3667

Published: 2 March 2022

An improper locking issue was found in the virStoragePoolLookupByTargetPath API of libvirt. It occurs in the storagePoolLookupByTargetPath function where a locked virStoragePoolObj object is not properly released on ACL permission failure. Clients connecting to the read-write socket with limited ACL permissions could use this flaw to acquire the lock and prevent other users from accessing storage pool/volume APIs, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability.

Priority

Low

CVSS 3 base score: 6.5

Status

Package Release Status
libvirt
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal
Released (6.0.0-0ubuntu8.16)
hirsute Ignored
(reached end-of-life)
impish Not vulnerable
(7.6.0-0ubuntu1)
jammy
Released (7.6.0-0ubuntu3)
trusty Not vulnerable
(code not present)
upstream
Released (7.6.0-1)
xenial Not vulnerable
(code not present)