CVE-2012-3443
The django.forms.ImageField class in the form system in Django before 1.3.2 and 1.4.x before 1.4.1 completely decompresses image data during image validation, which allows remote attackers to cause a denial of service (memory consumption) by uploading an image file.
Date published : 2012-07-31
https://www.djangoproject.com/weblog/2012/jul/30/security-releases-issued/