CVE-2021-3667

Updated: 2023-11-04 20:00:53.174811

Description:

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.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x LOW 3.5
CVSS Version 3.x MEDIUM 6.5

Status

OS name Project name Version Score Severity Status Errata Last updated
CentOS 6 ELS libvirt 0.10.2 6.5 MEDIUM Ignored 2022-03-31 06:48:26
CentOS 8.4 ELS libvirt 6.0.0-35.1 6.5 MEDIUM Released CLSA-2022:1646071990 2022-03-31 06:48:26
CentOS 8.5 ELS libvirt 6.0.0-37 6.5 MEDIUM Not Vulnerable 2022-03-31 06:48:26
CloudLinux 6 ELS libvirt 0.10.2 6.5 MEDIUM Ignored 2022-03-31 06:48:26
Oracle Linux 6 ELS libvirt 0.10.2 6.5 MEDIUM Ignored 2022-03-31 06:48:26
Ubuntu 16.04 ELS libvirt 1.3.1-1 6.5 MEDIUM Ignored 2022-03-31 06:48:26
Ubuntu 18.04 ELS libvirt 4.0.0-1 6.5 MEDIUM Not Vulnerable 2023-07-05 05:06:47