A Django security update has been released for Ubuntu Linux 16.04 ESM.

USN-5837-2: Django vulnerability

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Ubuntu Security Notice USN-5837-2
February 01, 2023

python-django vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 ESM

Summary:

Django could be made to consume memory if it received specially crafted
network traffic.

Software Description:
- python-django: High-level Python web development framework

Details:

USN-5837-1 fixed a vulnerability in Django. This update provides
the corresponding update for Ubuntu 16.04 ESM.

Original advisory details:

Nick Pope discovered that Django incorrectly handled certain
Accept-Language headers. A remote attacker could possibly use this issue to
cause Django to consume memory, leading to a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 ESM:
python-django 1.8.7-1ubuntu5.15+esm6
python3-django 1.8.7-1ubuntu5.15+esm6

In general, a standard system update will make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-5837-2
  https://ubuntu.com/security/notices/USN-5837-1
CVE-2023-23969