Ubuntu Security Notice USN-1782-1
28th March, 2013
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS
libxml2 could be made to hang if it received specially crafted input.
- libxml2 - GNOME XML library
It was discovered that libxml2 incorrectly handled XML entity expansion.
An attacker could use this flaw to cause libxml2 to consume large amounts
of resources, resulting in a denial of service.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 12.10:
- libxml2 2.8.0+dfsg1-5ubuntu2.2
- Ubuntu 12.04 LTS:
- libxml2 2.7.8.dfsg-5.1ubuntu4.4
- Ubuntu 11.10:
- libxml2 2.7.8.dfsg-4ubuntu0.6
- Ubuntu 10.04 LTS:
- libxml2 2.7.6.dfsg-1ubuntu1.8
- Ubuntu 8.04 LTS:
- libxml2 2.6.31.dfsg-2ubuntu1.12
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make
all the necessary changes.