Ubuntu 20.10: USN-4896-1 Moderate: lxml Cross-Site Scripting Risk

ubuntu

March 30, 2021

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

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 lxml incorrectly handled certain HTML attributes. A

remote attacker could possibly use this issue to perform cross-site

scripting (XSS) attacks.

Topics Covered

security advisory software patch cross-site scripting threat update instructions ubuntu lxml

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.