Improper Locking Affecting libvirt package, versions <0:6.0.0-37.module+el8.5.0+670+c4aa478c


Severity

Recommended
0.0
medium
0
10

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.33% (72nd percentile)

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  • Snyk IDSNYK-ROCKY8-LIBVIRT-3287014
  • published5 Jan 2023
  • disclosed2 Mar 2022

Introduced: 2 Mar 2022

CVE-2021-3667  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 libvirt to version 0:6.0.0-37.module+el8.5.0+670+c4aa478c or higher.
This issue was patched in RLSA-2021:4191.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libvirt package and not the libvirt package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1