Ubuntu Security Notice USN-1981-1
30th September, 2013
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS
HPLIP could be made to overwrite files.
- hplip - HP Linux Printing and Imaging System (HPLIP)
It was discovered that HPLIP incorrectly handled temporary files when using
the fax capabilities. A local attacker could possibly use this issue to
overwrite arbitrary files. This issue only applied to Ubuntu 10.04 LTS.
Tim Waugh discovered that HPLIP incorrectly handled temporary files when
printing. A local attacker could possibly use this issue to overwrite
arbitrary files. In the default installation of Ubuntu 12.04 LTS and Ubuntu
12.10, this should be prevented by the Yama link restrictions.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 12.10:
- hplip 3.12.6-3ubuntu4.2
- Ubuntu 12.04 LTS:
- hplip 3.12.2-1ubuntu3.3
- Ubuntu 10.04 LTS:
- hplip 3.10.2-2ubuntu2.4
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.