USN-4932-2: Django vulnerability

USN-4932-2: Django vulnerability

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.
Source: USN-4932-2: Django vulnerability