Ubuntu Security Notice USN-799-1
13th July, 2009
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 9.04
- Ubuntu 8.10
- Ubuntu 8.04 LTS
- Ubuntu 6.06 LTS
It was discovered that the D-Bus library did not correctly validate
signatures. If a local user sent a specially crafted D-Bus key, they could
spoof a valid signature and bypass security policies.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 9.04:
- libdbus-1-3 1.2.12-0ubuntu2.1
- Ubuntu 8.10:
- libdbus-1-3 1.2.4-0ubuntu1.1
- Ubuntu 8.04 LTS:
- libdbus-1-3 1.1.20-1ubuntu3.3
- Ubuntu 6.06 LTS:
- libdbus-1-2 0.60-6ubuntu8.4
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system upgrade you need to reboot your computer to
effect the necessary changes.