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Ubuntu Security Notice USN-4932-2
May 13, 2021

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

- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

Django could be made to overwrite files.

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

Details:

USN-4932-1 fixed a vulnerability in Django. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

 It was discovered that Django incorrectly handled certain
 filenames. A remote attacker could possibly use this issue to create or
 overwrite files in unexpected directories.

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+esm1
  python3-django                  1.8.7-1ubuntu5.15+esm1

Ubuntu 14.04 ESM:
  python-django                   1.6.11-0ubuntu1.3+esm3

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

References:
  https://ubuntu.com/security/notices/USN-4932-2
  https://ubuntu.com/security/notices/USN-4932-1
  CVE-2021-31542