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USN-4896-1: lxml vulnerability

30 March 2021

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

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Releases

Packages

  • lxml - pythonic binding for the libxml2 and libxslt libraries

Details

It was discovered that lxml incorrectly handled certain HTML attributes. A
remote attacker could possibly use this issue to perform cross-site
scripting (XSS) attacks.

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.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 20.10
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

In general, a standard system update will make all the necessary changes.

References

Related notices

  • USN-4896-2: python-lxml-doc, python-lxml, python3-lxml, lxml