CVE-2015-0222

ModelMultipleChoiceField en Django 1.6.x anterior a 1.6.10 y 1.7.x anterior a 1.7.3, cuando show_hidden_initial está configurado a 'True', permite a atacantes remotos causar una denegación de servicio mediante la presentación de valores duplicados, lo que provoca un número grande de consultas SQL.

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. 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. 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. 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. Cross-site scripting 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.