RHSA-2015:1876 - Security Advisory

Topic

Updated python-django packages that fix one security issue are now
available for Red Hat Enterprise Linux OpenStack Platform 7.0.

Red Hat Product Security has rated this update as having Moderate security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

Description

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)

Red Hat would like to thank the upstream Django project for reporting this
issue.

All python-django users are advised to upgrade to these updated packages,
which contain a backported patch to correct this issue.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat OpenStack 7 x86_64

Fixes

• BZ - 1252890 - CVE-2015-5963 python-django: Denial-of-service possibility in logout() view by filling session store

CVEs

• CVE-2015-5963

References

• http://www.redhat.com/security/updates/classification/#normal