USN-1576-1: DBus vulnerability
Ubuntu Security Notice USN-1576-1
20th September, 2012
dbus vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS
Summary
DBus could be made to run programs as an administrator.
Software description
- dbus - simple interprocess messaging system
Details
Sebastian Krahmer discovered that DBus incorrectly handled environment
variables when running with elevated privileges. A local attacker could
possibly exploit this flaw with a setuid binary and gain root privileges.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 12.04 LTS:
- dbus 1.4.18-1ubuntu1.1
- libdbus-1-3 1.4.18-1ubuntu1.1
- Ubuntu 11.10:
- dbus 1.4.14-1ubuntu1.1
- libdbus-1-3 1.4.14-1ubuntu1.1
- Ubuntu 11.04:
- dbus 1.4.6-1ubuntu6.2
- libdbus-1-3 1.4.6-1ubuntu6.2
- Ubuntu 10.04 LTS:
- dbus 1.2.16-2ubuntu4.5
- libdbus-1-3 1.2.16-2ubuntu4.5
- Ubuntu 8.04 LTS:
- dbus 1.1.20-1ubuntu3.7
- libdbus-1-3 1.1.20-1ubuntu3.7
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.