Description
An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-build.c in xkbcommon before 0.8.1 could be used by local attackers to crash xkbcommon keymap parsers or possibly have unspecified other impact by supplying a crafted keymap file.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://security.gentoo.org/glsa/201810-05 ↗
- https://usn.ubuntu.com/3786-1/ ↗
- https://github.com/xkbcommon/libxkbcommon/commit/c1e5ac16e77a21f87bdf3bc4dea61b037a17dddb ↗
- https://usn.ubuntu.com/3786-2/ ↗
- https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html ↗
- https://access.redhat.com/errata/RHSA-2019:2079 ↗