Ilja van Sprundel discovered that ClamAV did not handle recursive JPEG information. If a remote attacker sent a specially crafted JPEG file, ClamAV would crash, leading to a denial of service.
The problem can be corrected by updating your system to the following package versions:
2 December 2008
A security issue affects these releases of Ubuntu and its derivatives:
Ilja van Sprundel discovered that ClamAV did not handle recursive JPEG information. If a remote attacker sent a specially crafted JPEG file, ClamAV would crash, leading to a denial of service.
The problem can be corrected by updating your system to the following package versions:
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.