USN-1874-1: DBus vulnerability

13 June 2013

dbus vulnerability

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

  • Ubuntu 13.04
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS


DBus could be made to crash if it received specially crafted input.

Software Description

  • dbus - simple interprocess messaging system


Alexandru Cornea discovered that DBus incorrectly handled certain messages. A local attacker could use this issue to cause system services to crash, resulting in a denial of service.

Update instructions

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

Ubuntu 13.04
libdbus-1-3 - 1.6.8-1ubuntu6.1
Ubuntu 12.10
libdbus-1-3 - 1.6.4-1ubuntu4.1
Ubuntu 12.04 LTS
libdbus-1-3 - 1.4.18-1ubuntu1.4

To update your system, please follow these instructions:

After a standard system update you need to reboot your computer to make all the necessary changes.