Security Information / 2021 / Security Information -- DSA-4880-1 lxml

Debian Security Advisory

DSA-4880-1 lxml -- security update

Date Reported:

29 Mar 2021

Affected Packages:

lxml

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 985643.
In Mitre's CVE dictionary: CVE-2021-28957.

More information:

Kevin Chung discovered that lxml, a Python binding for the libxml2 and libxslt libraries, did not properly sanitize its input. This would allow a malicious user to mount a cross-site scripting attack.

For the stable distribution (buster), this problem has been fixed in version 4.3.2-1+deb10u3.

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