(RHSA-2015:1766) Moderate: python-django security update

Django is a high-level Python Web framework that encourages rapid
development and a clean, pragmatic design. It focuses on automating as much
as possible and adhering to the DRY (Don’t Repeat Yourself) principle.

It was found that Django incorrectly handled the session store. A session
could be created by anonymously accessing the
django.contrib.auth.views.logout view if it was not decorated correctly
with django.contrib.auth.decorators.login_required. A remote attacker could
use this flaw to fill up the session store or cause other users’ session
records to be evicted by requesting a large number of new sessions.
(CVE-2015-5963)

It was found that certain Django functions would, in certain circumstances,
create empty sessions. A remote attacker could use this flaw to fill up the
session store or cause other users’ session records to be evicted by
requesting a large number of new sessions. (CVE-2015-5964)

Red Hat would like to thank the upstream Django project for reporting these
issues. Upstream acknowledges Lin Hua Cheng as the original reporter of
CVE-2015-5964.

All python-django users are advised to upgrade to these updated packages,
which contain backported patches to correct these issues.