Sean Larsson discovered that libexif did not correctly verify the size of EXIF components. By tricking a user into opening an image with specially crafted EXIF headers, a remote attacker could cause the application using libexif to execute arbitrary code with user privileges.
The problem can be corrected by updating your system to the following package versions:
27 June 2007
A security issue affects these releases of Ubuntu and its derivatives:
Sean Larsson discovered that libexif did not correctly verify the size of EXIF components. By tricking a user into opening an image with specially crafted EXIF headers, a remote attacker could cause the application using libexif to execute arbitrary code with user privileges.
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.
After a standard system upgrade you need to restart your session to effect the necessary changes.