USN-368-1: Qt vulnerability

24 October 2006

qt-x11-free vulnerability

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

  • Ubuntu 6.06 LTS
  • Ubuntu 5.10
  • Ubuntu 5.04

Software Description


An integer overflow was discovered in Qt’s image loader. By processing a specially crafted image with an application that uses this library (like Konqueror), a remote attacker could exploit this to execute arbitrary code with the application’s privileges.

Update instructions

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

Ubuntu 6.06 LTS
libqt3-mt - 3:3.3.6-1ubuntu6.1
Ubuntu 5.10
libqt3-mt - 3:3.3.4-8ubuntu5.1
Ubuntu 5.04
libqt3c102 - 3:3.3.3-7ubuntu3.1
libqt3c102-mt - 3:3.3.3-7ubuntu3.1

To update your system, please follow these instructions:

After a standard system upgrade you need to restart your Desktop session to effect the necessary changes.