Ubuntu 4896-1: lxml vulnerability
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10: python3-lxml 4.5.2-1ubuntu0.4 Ubuntu 20.04 LTS: python-lxml 4.5.0-1ubuntu0.3 python3-lxml 4.5.0-1ubuntu0.3 Ubuntu 18.04 LTS: python-lxml 4.2.1-1ubuntu0.4 python3-lxml 4.2.1-1ubuntu0.4 Ubuntu 16.04 LTS: python-lxml 3.5.0-1ubuntu0.4 python3-lxml 3.5.0-1ubuntu0.4 In general, a standard system update will make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-4896-1
CVE-2021-28957
Package Information
https://launchpad.net/ubuntu/+source/lxml/4.5.2-1ubuntu0.4 https://launchpad.net/ubuntu/+source/lxml/4.5.0-1ubuntu0.3 https://launchpad.net/ubuntu/+source/lxml/4.2.1-1ubuntu0.4 https://launchpad.net/ubuntu/+source/lxml/3.5.0-1ubuntu0.4