Updated python-django packages fix security vulnerabilities:

Jedediah Smith discovered that Django incorrectly handled underscores
in WSGI headers. A remote attacker could possibly use this issue to
spoof headers in certain environments (CVE-2015-0219).

Mikko Ohtamaa discovered that Django incorrectly handled user-supplied
redirect URLs. A remote attacker could possibly use this issue to
perform a cross-site scripting attack (CVE-2015-0220).

Alex Gaynor discovered that Django incorrectly handled reading files
in django.views.static.serve(). A remote attacker could possibly use
this issue to cause Django to consume resources, resulting in a denial
of service (CVE-2015-0221).

Keryn Knight discovered that Django incorrectly handled forms with
ModelMultipleChoiceField. A remote attacker could possibly use this
issue to cause a large number of SQL queries, resulting in a database
denial of service. Note that this issue only affected python-django
(CVE-2015-0222).

Cross-site scripting (XSS) vulnerability in the contents function
in admin/helpers.py in Django before 1.7.6 and 1.8 before 1.8b2
allows remote attackers to inject arbitrary web script or HTML via
a model attribute in ModelAdmin.readonly_fields, as demonstrated by
a @property (CVE-2015-2241).