USN-3786-1: libxkbcommon vulnerabilities

08 October 2018

Several security issues were fixed in libxkbcommon.



  • libxkbcommon - library interface to the XKB compiler - development files


It was discovered that libxkbcommon incorrectly handled certain files.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2018-15853, CVE-2018-15854, CVE-2018-15855, CVE-2018-15856,
CVE-2018-15857, CVE-2018-15858, CVE-2018-15859, CVE-2018-15861,
CVE-2018-15862, CVE-2018-15863, CVE-2018-15864)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04
Ubuntu 14.04

In general, a standard system update will make all the necessary changes.

Related notices

  • USN-3786-2: libxkbcommon-x11-dev, libxkbcommon0, libxkbcommon-dev, libxkbcommon-x11-0, libxkbcommon