Improper Locking Affecting libvirt package, versions <7.10.0-2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.07% (21st percentile)

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  • Snyk IDSNYK-DEBIAN14-LIBVIRT-11749729
  • published10 Aug 2025
  • disclosed25 Mar 2022

Introduced: 25 Mar 2022

CVE-2021-4147  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

Upgrade Debian:14 libvirt to version 7.10.0-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libvirt package and not the libvirt package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

A flaw was found in the libvirt libxl driver. A malicious guest could continuously reboot itself and cause libvirtd on the host to deadlock or crash, resulting in a denial of service condition.

CVSS Base Scores

version 3.1