Use After Free The advisory has been revoked - it doesn't affect any version of package libxkbcommon (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-UBUNTU1810-LIBXKBCOMMON-614385
- published25 Sept 2018
- disclosed25 Aug 2018
Introduced: 25 Aug 2018
CVE-2018-15857 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:18.10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libxkbcommon package and not the libxkbcommon package as distributed by Ubuntu.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-15857
- https://security-tracker.debian.org/tracker/CVE-2018-15857
- https://security.gentoo.org/glsa/201810-05
- https://github.com/xkbcommon/libxkbcommon/commit/c1e5ac16e77a21f87bdf3bc4dea61b037a17dddb
- https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html
- https://access.redhat.com/errata/RHSA-2019:2079
- https://usn.ubuntu.com/3786-1/
- https://usn.ubuntu.com/3786-2/