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=========================================================== Ubuntu Security Notice USN-797-1 July 06, 2009 tiff vulnerability CVE-2009-2285 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 6.06 LTS Ubuntu 8.04 LTS Ubuntu 8.10 Ubuntu 9.04 This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu. The problem can be corrected by upgrading your system to the following package versions: Ubuntu 6.06 LTS: libtiff4 3.7.4-1ubuntu3.4 Ubuntu 8.04 LTS: libtiff4 3.8.2-7ubuntu3.2 Ubuntu 8.10: libtiff4 3.8.2-11ubuntu0.8.10.1 Ubuntu 9.04: libtiff4 3.8.2-11ubuntu0.9.04.1 In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: It was discovered that the TIFF library did not correctly handle certain malformed TIFF images. If a user or automated system were tricked into processing a malicious image, a remote attacker could cause an application linked against libtiff to crash, leading to a denial of service.