Debian: DLA-3500-1 Moderate: Python-Django DoS Security Fix

EmailValidator and URLValidator were subject to potential regular
expression denial of service attack via a very large number of domain
name labels of emails and URLs.

For Debian 10 buster, this problem has been fixed in version
1:1.11.29-1+deb10u9.

We recommend that you upgrade your python-django packages.

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

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