Ubuntu Security Notice USN-562-1
8th January, 2008
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 7.04
- Ubuntu 6.10
- Ubuntu 6.06 LTS
Jose Miguel Esparza discovered that certain SIP headers were not correctly
validated. A remote attacker could send a specially crafted packet to
an application linked against opal (e.g. Ekiga) causing it to crash, leading
to a denial of service.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 7.04:
- libopal-2.2.0 2.2.3.dfsg-2ubuntu2.1
- Ubuntu 6.10:
- libopal-2.2.0 2.2.3.dfsg-0ubuntu2.1
- Ubuntu 6.06 LTS:
- libopal-2.2.0 2.2.1-1ubuntu1.1
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system upgrade you need to restart your session to effect
the necessary changes.