=========================================================================Ubuntu Security Notice USN-2217-1
May 21, 2014

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

- Ubuntu 14.04 LTS
- Ubuntu 13.10
- Ubuntu 12.04 LTS

Summary:

lxml could allow cross-site scripting (XSS) attacks.

Software Description:
- lxml: pythonic binding for the libxml2 and libxslt libraries

Details:

It was discovered that the lxml.html.clean module incorrectly stripped
control characters. An attacked could potentially exploit this to conduct
cross-site scripting (XSS) attacks.

Update instructions:

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

Ubuntu 14.04 LTS:
  python-lxml                     3.3.3-1ubuntu0.1
  python3-lxml                    3.3.3-1ubuntu0.1

Ubuntu 13.10:
  python-lxml                     3.2.0-1ubuntu0.1
  python3-lxml                    3.2.0-1ubuntu0.1

Ubuntu 12.04 LTS:
  python-lxml                     2.3.2-1ubuntu0.2
  python3-lxml                    2.3.2-1ubuntu0.2

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

References:
  https://ubuntu.com/security/notices/USN-2217-1
  CVE-2014-3146

Package Information:
  https://launchpad.net/ubuntu/+source/lxml/3.3.3-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/lxml/3.2.0-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/lxml/2.3.2-1ubuntu0.2