USN-1631-1: LibTIFF vulnerabilities

Releases

• Ubuntu 12.10
• Ubuntu 12.04
• Ubuntu 11.10
• Ubuntu 10.04
• Ubuntu 8.04

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)

Update instructions

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

Ubuntu 8.04

• libtiff4 - 3.8.2-7ubuntu3.14

Ubuntu 12.10

• libtiff5 - 4.0.2-1ubuntu2.1

Ubuntu 12.04

• libtiff4 - 3.9.5-2ubuntu1.3

Ubuntu 11.10

• libtiff4 - 3.9.5-1ubuntu1.4

Ubuntu 10.04

• libtiff4 - 3.9.2-2ubuntu0.11

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

References

• CVE-2012-4447
• CVE-2012-4564