A Django security update has been released for Ubuntu Linux 16.04 LTS, 18.04 LTS, 20.04 LTS, and 20.10.

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Ubuntu Security Notice USN-4715-1
February 01, 2021

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

- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Django could be made to overwrite files.

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

Details:

Wang Baohua discovered that Django incorrectly extracted archive files. A
remote attacker could possibly use this issue to extract files outside of
their expected location.

Update instructions:

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

Ubuntu 20.10:
python3-django 2:2.2.16-1ubuntu0.1

Ubuntu 20.04 LTS:
python3-django 2:2.2.12-1ubuntu0.3

Ubuntu 18.04 LTS:
python-django 1:1.11.11-1ubuntu1.10
python3-django 1:1.11.11-1ubuntu1.10

Ubuntu 16.04 LTS:
python-django 1.8.7-1ubuntu5.14
python3-django 1.8.7-1ubuntu5.14

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

References:
  https://usn.ubuntu.com/4715-1
CVE-2021-3281

Package Information:
  https://launchpad.net/ubuntu/+source/python-django/2:2.2.16-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/python-django/2:2.2.12-1ubuntu0.3
  https://launchpad.net/ubuntu/+source/python-django/1:1.11.11-1ubuntu1.10
  https://launchpad.net/ubuntu/+source/python-django/1.8.7-1ubuntu5.14