CVE-2018-15861

Published: 25 August 2018

Unchecked NULL pointer usage in ExprResolveLhs 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 that triggers an xkb_intern_atom failure.

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
libxkbcommon
Launchpad, Ubuntu, Debian
Upstream
Released (0.8.2-1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (0.8.0-1ubuntu0.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (0.5.0-1ubuntu2.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was released [0.4.1-0ubuntu1.1])
Patches:
Vendor: https://github.com/xkbcommon/libxkbcommon/commit/38e1766bc6e20108948aec8a0b222a4bad0254e9