CVE-2018-15857

Name	CVE-2018-15857
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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs	907302

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libxkbcommon (PTS)	buster	0.8.2-1	fixed
	bullseye	1.0.3-2	fixed
	bookworm, sid	1.5.0-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libxkbcommon	source	(unstable)	0.8.2-1	low		907302

Notes

[stretch] - libxkbcommon <ignored> (Minor issue)
[jessie] - libxkbcommon <no-dsa> (Minor issue)
https://github.com/xkbcommon/libxkbcommon/commit/c1e5ac16e77a21f87bdf3bc4dea61b037a17dddb
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html