USN-854-1: GD library vulnerabilities
5 November 2009
GD library vulnerabilities
Releases
Packages
- libgd2 -
Details
Tomas Hoger discovered that the GD library did not properly handle the
number of colors in certain malformed GD images. If a user or automated
system were tricked into processing a specially crafted GD image, an
attacker could cause a denial of service or possibly execute arbitrary
code. (CVE-2009-3546)
It was discovered that the GD library did not properly handle incorrect
color indexes. An attacker could send specially crafted input to
applications linked against libgd2 and cause a denial of service or
possibly execute arbitrary code. This issue only affected Ubuntu 6.06 LTS.
(CVE-2009-3293)
It was discovered that the GD library did not properly handle certain
malformed GIF images. If a user or automated system were tricked into
processing a specially crafted GIF image, an attacker could cause a denial
of service. This issue only affected Ubuntu 6.06 LTS. (CVE-2007-3475,
CVE-2007-3476)
It was discovered that the GD library did not properly handle large angle
degree values. An attacker could send specially crafted input to
applications linked against libgd2 and cause a denial of service. This
issue only affected Ubuntu 6.06 LTS. (CVE-2007-3477)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 9.10
Ubuntu 9.04
Ubuntu 8.10
Ubuntu 8.04
Ubuntu 6.06
In general, a standard system upgrade is sufficient to effect the
necessary changes.