Ubuntu Security Notice USN-557-1
18th December, 2007
libgd2 vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 7.10
- Ubuntu 7.04
- Ubuntu 6.10
- Ubuntu 6.06 LTS
Software description
- libgd2
Details
Mattias Bengtsson and Philip Olausson discovered that the GD
library did not properly perform bounds checking when creating
images. An attacker could send specially crafted input to
applications linked against libgd2 and cause a denial of service
or possibly execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 7.10:
- libgd2-xpm 2.0.34-1ubuntu1.1
- libgd2-noxpm 2.0.34-1ubuntu1.1
- Ubuntu 7.04:
- libgd2-xpm 2.0.34~rc1-2ubuntu1.2
- libgd2-noxpm 2.0.34~rc1-2ubuntu1.2
- Ubuntu 6.10:
- libgd2-xpm 2.0.33-4ubuntu2.2
- libgd2-noxpm 2.0.33-4ubuntu2.2
- Ubuntu 6.06 LTS:
- libgd2-xpm 2.0.33-2ubuntu5.3
- libgd2-noxpm 2.0.33-2ubuntu5.3
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system upgrade is sufficient to effect the
necessary changes.