DescriptionUnchecked 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitylow
Debian Bugs907302

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libxkbcommon (PTS)stretch0.7.1-2~deb9u1vulnerable
bullseye, sid0.10.0-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[stretch] - libxkbcommon <ignored> (Minor issue)
[jessie] - libxkbcommon <no-dsa> (Minor issue)

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