NULL Pointer Dereference Affecting libxkbcommon package, versions *
Snyk CVSS
Attack Complexity
Low
Availability
High
Threat Intelligence
EPSS
0.05% (15th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN9-LIBXKBCOMMON-263458
- published 25 Sep 2018
- disclosed 25 Aug 2018
Introduced: 25 Aug 2018
CVE-2018-15859 Open this link in a new tabHow to fix?
There is no fixed version for Debian:9
libxkbcommon
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libxkbcommon
package and not the libxkbcommon
package as distributed by Debian
.
See How to fix?
for Debian:9
relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2018-15859
- https://security.gentoo.org/glsa/201810-05
- https://github.com/xkbcommon/libxkbcommon/commit/bb4909d2d8fa6b08155e449986a478101e2b2634
- https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.html
- https://access.redhat.com/errata/RHSA-2019:2079
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-15859
- https://usn.ubuntu.com/3786-1/
- https://usn.ubuntu.com/3786-2/