Debian Security Advisory

DLA-3306-1 python-django -- LTS security update

Date Reported:
01 Feb 2023
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2023-23969.
More information:

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.

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