Ubuntu Security Notice USN-1655-1
5th December, 2012
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS
Programs that use LibTIFF could be made to crash or run programs if they opened a specially crafted file.
- tiff - Tag Image File Format (TIFF) library
It was discovered that LibTIFF incorrectly handled certain malformed
images using the DOTRANGE tag. If a user or automated system were
tricked into opening a specially crafted TIFF image, a remote attacker
could crash the application, leading to a denial of service, or possibly
execute arbitrary code with user privileges.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 12.04 LTS:
- libtiff4 3.9.5-2ubuntu1.4
- Ubuntu 11.10:
- libtiff4 3.9.5-1ubuntu1.5
- Ubuntu 10.04 LTS:
- libtiff4 3.9.2-2ubuntu0.12
- Ubuntu 8.04 LTS:
- libtiff4 3.8.2-7ubuntu3.16
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.