6.2 Medium
AI Score
Confidence
Low
0.0004 Low
EPSS
Percentile
5.1%
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.
access.redhat.com/errata/RHSA-2019:2079
github.com/xkbcommon/libxkbcommon/commit/4e2ee9c3f6050d773f8bbe05bc0edb17f1ff8371
lists.freedesktop.org/archives/wayland-devel/2018-August/039243.html
security.gentoo.org/glsa/201810-05
usn.ubuntu.com/3786-1/
usn.ubuntu.com/3786-2/