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USN-1854-1: libx11 vulnerabilities

5 June 2013

Several security issues were fixed in libx11.



  • libx11 - X11 client-side 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
Ubuntu 12.10
Ubuntu 12.04
Ubuntu 10.04

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