USN-3786-1: libxkbcommon vulnerabilities

Releases

• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

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

Details

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

• libxkbcommon-x11-0 - 0.5.0-1ubuntu2.1
• libxkbcommon0 - 0.5.0-1ubuntu2.1

Ubuntu 14.04

• libxkbcommon-x11-0 - 0.4.1-0ubuntu1.1
• libxkbcommon0 - 0.4.1-0ubuntu1.1

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

References

• 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

Related notices

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