The password reset functionality in django.contrib.auth in Django before 1.1.3, 1.2.x before 1.2.4, and 1.3.x before 1.3 beta 1 does not validate the length of a string representing a base36 timestamp, which allows remote attackers to cause a denial of service (resource consumption) via a URL that specifies a large base36 integer.
code.djangoproject.com/changeset/15032
lists.fedoraproject.org/pipermail/package-announce/2011-January/053041.html
lists.fedoraproject.org/pipermail/package-announce/2011-January/053072.html
secunia.com/advisories/42715
secunia.com/advisories/42827
secunia.com/advisories/42913
www.djangoproject.com/weblog/2010/dec/22/security/
www.openwall.com/lists/oss-security/2010/12/23/4
www.openwall.com/lists/oss-security/2011/01/03/5
www.securityfocus.com/bid/45563
www.ubuntu.com/usn/USN-1040-1
www.vupen.com/english/advisories/2011/0048
www.vupen.com/english/advisories/2011/0098
bugzilla.redhat.com/show_bug.cgi?id=665373