Ubuntu Security Notice USN-380-1
10th November, 2006
avahi vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 6.10
- Ubuntu 6.06 LTS
- Ubuntu 5.10
Details
Steve Grubb discovered that netlink messages were not being checked for
their sender identity. This could lead to local users manipulating the
Avahi service.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 6.10:
- avahi-daemon 0.6.13-2ubuntu2.2
- libavahi-core4 0.6.13-2ubuntu2.2
- Ubuntu 6.06 LTS:
- avahi-daemon 0.6.10-0ubuntu3.2
- libavahi-core4 0.6.10-0ubuntu3.2
- Ubuntu 5.10:
- avahi-daemon 0.5.2-1ubuntu1.2
- libavahi-core1 0.5.2-1ubuntu1.2
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system upgrade is sufficient to effect the
necessary changes.