python-django: Denial-of-service possibility in logout() view by filling session store

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...

Debian DSA-3305-1 : python-django - security update

Several vulnerabilities were discovered in Django, a high-level Python web development framework : - CVE-2015-5143 Eric Peterson and Lin Hua Cheng discovered that a new empty record used to be created in the session storage every time a session was accessed and an unknown session key was provided...