Stefan Cornelius discovered that libgdiplus incorrectly handled certain image files. If a user or automated system were tricked into opening a crafted image file, an attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program.
The problem can be corrected by updating your system to the following package versions:
29 September 2010
A security issue affects these releases of Ubuntu and its derivatives:
Stefan Cornelius discovered that libgdiplus incorrectly handled certain image files. If a user or automated system were tricked into opening a crafted image file, an attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program.
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 update will make all the necessary changes.