USN-2217-1: lxml vulnerability

Publication date

21 May 2014

Overview

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


Packages

  • 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.

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
14.04 trusty python-lxml –  3.3.3-1ubuntu0.1
python3-lxml –  3.3.3-1ubuntu0.1
13.10 saucy python-lxml –  3.2.0-1ubuntu0.1
python3-lxml –  3.2.0-1ubuntu0.1
12.04 precise python-lxml –  2.3.2-1ubuntu0.2
python3-lxml –  2.3.2-1ubuntu0.2

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


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