CVE-2018-14598

Published: 24 August 2018

An issue was discovered in XListExtensions in ListExt.c in libX11 through 1.6.5. A malicious server can send a reply in which the first string overflows, causing a variable to be set to NULL that will be freed later on, leading to DoS (segmentation fault).

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
libx11
Launchpad, Ubuntu, Debian
Upstream
Released (1.6.6)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (2:1.6.4-3ubuntu0.1)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (2:1.6.3-1ubuntu2.1)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (2:1.6.2-1ubuntu2.1)
Patches:
Other: https://gitlab.freedesktop.org/xorg/lib/libx11/commit/e83722768fd5c467ef61fa159e8c6278770b45c2