Missing Release of Resource after Effective Lifetime Affecting libvirt package, versions <6.6.0-1


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.04% (15th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-DEBIAN12-LIBVIRT-1551097
  • published24 Jul 2020
  • disclosed3 Dec 2020

Introduced: 24 Jul 2020

CVE-2020-14339  (opens in a new tab)
CWE-772  (opens in a new tab)

How to fix?

Upgrade Debian:12 libvirt to version 6.6.0-1 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:12 relevant fixed versions and status.

A flaw was found in libvirt, where it leaked a file descriptor for /dev/mapper/control into the QEMU process. This file descriptor allows for privileged operations to happen against the device-mapper on the host. This flaw allows a malicious guest user or process to perform operations outside of their standard permissions, potentially causing serious damage to the host operating system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS Scores

version 3.1