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==========================================================================
Ubuntu Security Notice USN-1376-1
February 27, 2012

libxml2 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

libxml2 could be made to cause a denial of service by consuming excessive
CPU resources.

Software Description:
- libxml2: GNOME XML library

Details:

Juraj Somorovsky discovered that libxml2 was vulnerable to hash table
collisions. If a user or application linked against libxml2 were tricked
into opening a specially crafted XML file, an attacker could cause a
denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.10:
  libxml2                         2.7.8.dfsg-4ubuntu0.2

Ubuntu 11.04:
  libxml2                         2.7.8.dfsg-2ubuntu0.3

Ubuntu 10.10:
  libxml2                         2.7.7.dfsg-4ubuntu0.4

Ubuntu 10.04 LTS:
  libxml2                         2.7.6.dfsg-1ubuntu1.4

Ubuntu 8.04 LTS:
  libxml2                         2.6.31.dfsg-2ubuntu1.8

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-1376-1
  CVE-2012-0841

Package Information:
  https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-4ubuntu0.2
  https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-2ubuntu0.3
  https://launchpad.net/ubuntu/+source/libxml2/2.7.7.dfsg-4ubuntu0.4
  https://launchpad.net/ubuntu/+source/libxml2/2.7.6.dfsg-1ubuntu1.4
  https://launchpad.net/ubuntu/+source/libxml2/2.6.31.dfsg-2ubuntu1.8


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