USN-401-1: D-Bus vulnerability

Ubuntu Security Notice USN-401-1

4th January, 2007

dbus vulnerability

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

  • Ubuntu 6.10
  • Ubuntu 6.06 LTS
  • Ubuntu 5.10


Kimmo Hämäläinen discovered that local users could delete other users'
D-Bus match rules. Applications would stop receiving D-Bus messages,
resulting in a local denial of service, and potential data loss for
applications that depended on D-Bus for storing information.

Update instructions

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

Ubuntu 6.10:
dbus 0.93-0ubuntu3.1
Ubuntu 6.06 LTS:
dbus 0.60-6ubuntu8.1
Ubuntu 5.10:
dbus 0.36.2-0ubuntu7.1

To update your system, please follow these instructions:

After a standard system upgrade you need to reboot your computer to
effect the necessary changes.