Debian Long Term Support / LTS Security Information / 2021 / Security Information -- DLA-2871-1 lxml

Debian Security Advisory

DLA-2871-1 lxml -- LTS security update

Date Reported:

30 Dec 2021

Affected Packages:

lxml

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 1001885.
In Mitre's CVE dictionary: CVE-2021-43818.

More information:

lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs.

For Debian 9 stretch, this problem has been fixed in version 3.7.1-1+deb9u5.

We recommend that you upgrade your lxml packages.

For the detailed security status of lxml please refer to its security tracker page at: https://security-tracker.debian.org/tracker/lxml

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS