USN-639-1: tiff vulnerability

2 September 2008

tiff vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 8.04 LTS
  • Ubuntu 7.10
  • Ubuntu 7.04
  • Ubuntu 6.06 LTS

Software Description

  • tiff


Drew Yao discovered that the TIFF library did not correctly validate LZW compressed TIFF images. If a user or automated system were tricked into processing a malicious image, a remote attacker could execute arbitrary code or cause an application linked against libtiff to crash, leading to a denial of service.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 8.04 LTS
libtiff4 - 3.8.2-7ubuntu3.1
Ubuntu 7.10
libtiff4 - 3.8.2-7ubuntu2.1
Ubuntu 7.04
libtiff4 - 3.8.2-6ubuntu1
Ubuntu 6.06 LTS
libtiff4 - 3.7.4-1ubuntu3.3

To update your system, please follow these instructions:

In general, a standard system upgrade is sufficient to effect the necessary changes.