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CVE-2018-15862

Published: 25 August 2018

Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file with invalid virtual modifiers.

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
libxkbcommon
Launchpad, Ubuntu, Debian
bionic
Released (0.8.0-1ubuntu0.1)
cosmic Not vulnerable
(0.8.2-1)
precise Does not exist

trusty Does not exist
(trusty was released [0.4.1-0ubuntu1.1])
upstream
Released (0.8.2-1)
xenial
Released (0.5.0-1ubuntu2.1)
Patches:
vendor: https://github.com/xkbcommon/libxkbcommon/commit/4e2ee9c3f6050d773f8bbe05bc0edb17f1ff8371