A Python-Django security update has been released for Debian GNU/Linux 11 to address a potential Denial of Service (DoS) vulnerability.

DLA 3306-1: python-django security update

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Debian LTS Advisory DLA-3306-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Chris Lamb
February 01, 2023   https://wiki.debian.org/LTS
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Package : python-django
Version : 1:1.11.29-1+deb10u6
CVE ID : CVE-2023-23969
Debian Bug : 1030251

It was discovered that there was a potential Denial of Service (DoS)
vulnerability in Django, a popular Python-based web development
framework.

Parsed values of the Accept-Language HTTP headers are cached by
Django order to avoid repetitive parsing. This could have led to a
potential denial-of-service attack via excessive memory usage if the
raw value of Accept-Language headers was very large.

Accept-Language headers are now limited to a maximum length
specifically in order to avoid this issue.

For Debian 10 buster, this problem has been fixed in version
1:1.11.29-1+deb10u6.

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/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