Ubuntu Security Notice USN-471-1
11th June, 2007
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 7.04
- Ubuntu 6.10
- Ubuntu 6.06 LTS
Victor Stinner discovered that libexif did not correctly validate the
size of some EXIF header fields. By tricking a user into opening an
image with specially crafted EXIF headers, a remote attacker could cause
the application using libexif to crash, resulting in a denial of service.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 7.04:
- libexif12 0.6.13-5ubuntu0.1
- Ubuntu 6.10:
- libexif12 0.6.13-4ubuntu0.1
- Ubuntu 6.06 LTS:
- libexif12 0.6.12-2ubuntu0.1
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.