Ubuntu Security Notice USN-569-1
14th January, 2008
libxml2 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
- libxml2
Details
Brad Fitzpatrick discovered that libxml2 did not correctly handle certain
UTF-8 sequences. If a remote attacker were able to trick a user or
automated system into processing a specially crafted XML document, the
application linked against libxml2 could enter an infinite loop, leading
to a denial of service via CPU resource consumption.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 7.10:
- libxml2 2.6.30.dfsg-2ubuntu1.1
- Ubuntu 7.04:
- libxml2 2.6.27.dfsg-1ubuntu3.1
- Ubuntu 6.10:
- libxml2 2.6.26.dfsg-2ubuntu4.1
- Ubuntu 6.06 LTS:
- libxml2 2.6.24.dfsg-1ubuntu1.1
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system upgrade you need to restart your session to effect
the necessary changes.