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CVE-2020-14339

Published: 3 December 2020

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.

Priority

Low

CVSS 3 base score: 8.8

Status

Package Release Status
libvirt
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal Not vulnerable
(code not present)
precise Not vulnerable
(code not present)
trusty Not vulnerable
(code not present)
upstream Needs triage

xenial Not vulnerable
(code not present)