USN-495-1: Qt vulnerability

3 August 2007

qt-x11-free vulnerability

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

  • Ubuntu 7.04
  • Ubuntu 6.10
  • Ubuntu 6.06 LTS

Software Description


Several format string vulnerabilities have been discovered in Qt warning messages. By causing an application to process specially crafted input data which triggered Qt warnings, this could be exploited to execute arbitrary code with the privilege of the user running the application.

Update instructions

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

Ubuntu 7.04
libqt3-mt - 3:3.3.8really3.3.7-0ubuntu5.1
Ubuntu 6.10
libqt3-mt - 3:3.3.6-3ubuntu3.2
Ubuntu 6.06 LTS
libqt3-mt - 3:3.3.6-1ubuntu6.3

To update your system, please follow these instructions:

After a standard system upgrade you should restart your KDE session to to effect the necessary changes.