Andrey Babak discovered that Django incorrectly handled strip_tags. A remote attacker could possibly use this issue to cause Django to enter an infinite loop, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 14.10. (CVE-2015-2316)
Daniel Chatfield 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-2015-2317)