Improper Locking Affecting libguestfs-tools-c package, versions <1:1.40.2-28.0.1.module+el8.5.0+20363+3abb8f5b


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.28% (68th percentile)

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  • Snyk IDSNYK-ORACLE8-LIBGUESTFSTOOLSC-2589964
  • published10 Apr 2022
  • 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 Oracle:8 libguestfs-tools-c to version 1:1.40.2-28.0.1.module+el8.5.0+20363+3abb8f5b or higher.
This issue was patched in ELSA-2021-4191.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libguestfs-tools-c package and not the libguestfs-tools-c package as distributed by Oracle. See How to fix? for Oracle: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