USN-1862-1: libxrandr vulnerability

5 June 2013

libxrandr, libxrandr-lts-quantal vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 13.04
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS


Several security issues were fixed in libxrandr.

Software Description

  • libxrandr - X11 RandR extension library
  • libxrandr-lts-quantal - X11 RandR extension library


Ilja van Sprundel discovered multiple security issues in various libraries and components. An attacker could use these issues to cause applications to crash, resulting in a denial of service, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 13.04
libxrandr2 - 2:1.4.0-1ubuntu1.1
Ubuntu 12.10
libxrandr2 - 2:1.4.0-1ubuntu0.1
Ubuntu 12.04 LTS
libxrandr-ltsq2 - 2:1.4.0-1~precise2
libxrandr2 - 2:1.3.2-2ubuntu0.2

To update your system, please follow these instructions:

After a standard system update you need to restart your session to make all all the necessary changes.