1. Ubuntu Security Notices
  2. USN-1631-1

USN-1631-1: LibTIFF vulnerabilities

Publication date

15 November 2012

Overview

LibTIFF could be made to crash or run programs as your login if it opened a specially crafted file.

Releases

Packages

  • tiff - Tag Image File Format (TIFF) library

Details

It was discovered that LibTIFF incorrectly handled certain malformed images
using the PixarLog compression format. 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. (CVE-2012-4447)

Huzaifa S. Sidhpurwala discovered that the ppm2tiff tool incorrectly
handled certain malformed PPM images. If a user or automated system were
tricked into opening a specially crafted PPM image, a remote attacker could
crash the application, leading to a denial of service, or possibly execute
arbitrary code with user privileges. (CVE-2012-4564)

It was discovered that LibTIFF incorrectly handled certain malformed images
using the PixarLog compression format. 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. (CVE-2012-4447)

Huzaifa S. Sidhpurwala discovered that the ppm2tiff tool incorrectly
handled certain malformed PPM images. If a user or automated system were
tricked into opening a specially crafted PPM image, a remote attacker could
crash the application, leading to a denial of service, or possibly execute
arbitrary code with user privileges. (CVE-2012-4564)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
8.04 hardy libtiff4 –  3.8.2-7ubuntu3.14
12.10 quantal libtiff5 –  4.0.2-1ubuntu2.1
12.04 precise libtiff4 –  3.9.5-2ubuntu1.3
11.10 oneiric libtiff4 –  3.9.5-1ubuntu1.4
10.04 lucid libtiff4 –  3.9.2-2ubuntu0.11

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References

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