PublicDateAtUSN: 2018-08-25
Candidate: CVE-2018-15859
PublicDate: 2018-08-25 21:29:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15859
 https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.html
 https://ubuntu.com/security/notices/USN-3786-1
 https://ubuntu.com/security/notices/USN-3786-2
Description:
 Unchecked NULL pointer usage when parsing invalid atoms 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, because lookup failures are mishandled.
Ubuntu-Description:
Notes:
Bugs:
 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=907302
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H [5.5 MEDIUM]


Patches_libxkbcommon:
 vendor: https://github.com/xkbcommon/libxkbcommon/commit/bb4909d2d8fa6b08155e449986a478101e2b2634
upstream_libxkbcommon: released (0.8.2-1)
precise/esm_libxkbcommon: DNE
trusty_libxkbcommon: released (0.4.1-0ubuntu1.1)
trusty/esm_libxkbcommon: DNE (trusty was released [0.4.1-0ubuntu1.1])
xenial_libxkbcommon: released (0.5.0-1ubuntu2.1)
esm-infra/xenial_libxkbcommon: released (0.5.0-1ubuntu2.1)
bionic_libxkbcommon: released (0.8.0-1ubuntu0.1)
cosmic_libxkbcommon: not-affected (0.8.2-1)
devel_libxkbcommon: not-affected (0.8.2-1)