LibTIFF could be made to crash or run programs as your login if it opened a specially crafted file.
Pedro Ribeiro discovered that LibTIFF incorrectly handled certain malformed images when using the gif2tiff tool. If a user or automated system were tricked into opening a specially crafted GIF 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 affected Ubuntu 10.04 LTS, Ubunu 12.04 LTS, Ubuntu 12.10 and Ubuntu 13.10. (CVE-2013-4231)
6 May 2014
A security issue affects these releases of Ubuntu and its derivatives:
LibTIFF could be made to crash or run programs as your login if it opened a specially crafted file.
Pedro Ribeiro discovered that LibTIFF incorrectly handled certain malformed images when using the gif2tiff tool. If a user or automated system were tricked into opening a specially crafted GIF 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 affected Ubuntu 10.04 LTS, Ubunu 12.04 LTS, Ubuntu 12.10 and Ubuntu 13.10. (CVE-2013-4231)
Pedro Ribeiro discovered that LibTIFF incorrectly handled certain malformed images when using the tiff2pdf tool. 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 affected Ubuntu 10.04 LTS, Ubunu 12.04 LTS, Ubuntu 12.10 and Ubuntu 13.10. (CVE-2013-4232)
Murray McAllister discovered that LibTIFF incorrectly handled certain malformed images when using the gif2tiff tool. If a user or automated system were tricked into opening a specially crafted GIF image, a remote attacker could crash the application, leading to a denial of service, or possibly execute arbitrary code with user privileges. (CVE-2013-4243)
Huzaifa Sidhpurwala discovered that LibTIFF incorrectly handled certain malformed images when using the gif2tiff tool. If a user or automated system were tricked into opening a specially crafted GIF 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 affected Ubuntu 10.04 LTS, Ubunu 12.04 LTS, Ubuntu 12.10 and Ubuntu 13.10. (CVE-2013-4244)
The problem can be corrected by updating your system to the following package versions:
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.
Vulmon