Ubuntu Security Notice USN-1416-1
4th April, 2012
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS
The TIFF library could be made to crash or run programs as your login if it opened a specially crafted file.
- tiff - Tag Image File Format (TIFF) library
Alexander Gavrun discovered that the TIFF library incorrectly allocated
space for a tile. If a user or automated system were tricked into opening a
specially crafted TIFF image, a remote attacker could execute arbitrary
code with user privileges, or crash the application, leading to a denial of
It was discovered that the tiffdump utility incorrectly handled directory
data structures with many directory entries. 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. This issue only applied to
Ubuntu 8.04 LTS, Ubuntu 10.04 LTS, Ubuntu 10.10 and Ubuntu 11.04.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 11.10:
- libtiff4 3.9.5-1ubuntu1.1
- Ubuntu 11.04:
- libtiff4 3.9.4-5ubuntu6.1
- Ubuntu 10.10:
- libtiff4 3.9.4-2ubuntu0.5
- Ubuntu 10.04 LTS:
- libtiff4 3.9.2-2ubuntu0.8
- Ubuntu 8.04 LTS:
- libtiff4 3.8.2-7ubuntu3.10
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.