Improper Locking Affecting libvirt-admin package, versions <7.1.0-6.5.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating

    Threat Intelligence

    EPSS
    0.23% (62nd percentile)

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  • Snyk ID SNYK-SLES153-LIBVIRTADMIN-2667241
  • published 14 Apr 2022
  • disclosed 23 Aug 2021

How to fix?

Upgrade SLES:15.3 libvirt-admin to version 7.1.0-6.5.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libvirt-admin package and not the libvirt-admin package as distributed by SLES. See How to fix? for SLES:15.3 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
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NVD

6.5 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
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SUSE

6.5 medium
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Red Hat

6.5 medium