Ubuntu Security Notice USN-402-1
5th January, 2007
avahi vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 6.10
- Ubuntu 6.06 LTS
- Ubuntu 5.10
Details
A flaw was discovered in Avahi's handling of compressed DNS packets. If
a specially crafted reply were received over the network, the Avahi
daemon would go into an infinite loop, causing a denial of service.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 6.10:
- avahi-daemon 0.6.13-2ubuntu2.4
- Ubuntu 6.06 LTS:
- avahi-daemon 0.6.10-0ubuntu3.4
- Ubuntu 5.10:
- avahi-daemon 0.5.2-1ubuntu1.4
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.