[Trisquel-security] [USN-1153-1] libxml2 vulnerability

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-1153-1
June 16, 2011

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

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

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

Summary:

libxml2 could be made to crash or run programs as your login if it opened a
specially crafted file.

Software Description:
- libxml2: GNOME XML library

Details:

Chris Evans discovered that libxml2 incorrectly handled memory allocation.
If an application using libxml2 opened a specially crafted XML file, an
attacker could cause a denial of service or possibly execute code as the
user invoking the program.

Update instructions:

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

Ubuntu 11.04:
  libxml2                         2.7.8.dfsg-2ubuntu0.1

Ubuntu 10.10:
  libxml2                         2.7.7.dfsg-4ubuntu0.2

Ubuntu 10.04 LTS:
  libxml2                         2.7.6.dfsg-1ubuntu1.2

Ubuntu 8.04 LTS:
  libxml2                         2.6.31.dfsg-2ubuntu1.6

After a standard system update you need to restart your session to make
all the necessary changes.

References:
  CVE-2011-1944

Package Information:
  https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-2ubuntu0.1
  https://launchpad.net/ubuntu/+source/libxml2/2.7.7.dfsg-4ubuntu0.2
  https://launchpad.net/ubuntu/+source/libxml2/2.7.6.dfsg-1ubuntu1.2
  https://launchpad.net/ubuntu/+source/libxml2/2.6.31.dfsg-2ubuntu1.6


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