CVE-2020-14363

Published: 25 August 2020

An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as system availability.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
libx11
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(2:1.6.10-3)
Ubuntu 20.04 LTS (Focal Fossa)
Released (2:1.6.9-2ubuntu1.1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (2:1.6.4-3ubuntu0.3)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (2:1.6.3-1ubuntu2.2)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (2:1.6.2-1ubuntu2.1+esm1)
Ubuntu 12.04 ESM (Precise Pangolin)
Released (2:1.4.99.1-0ubuntu2.5)
Patches:
Upstream: https://gitlab.freedesktop.org/xorg/lib/libx11/-/commit/acdaaadcb3d85c61fd43669fc5dddf0f8c3f911d