Ubuntu Security Notice USN-478-1
26th June, 2007
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 7.04
- Ubuntu 6.10
- Ubuntu 6.06 LTS
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 version:
- Ubuntu 7.04:
- libexif12 0.6.13-5ubuntu0.2
- Ubuntu 6.10:
- libexif12 0.6.13-4ubuntu0.2
- Ubuntu 6.06 LTS:
- libexif12 0.6.12-2ubuntu0.2
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.