CVE-2009-3695
MEDIUM severity · CVSS 5
5CVSS MEDIUM
Summary
Algorithmic complexity vulnerability in the forms library in Django 1.0 before 1.0.4 and 1.1 before 1.1.1 allows remote attackers to cause a denial of service (CPU consumption) via a crafted (1) EmailField (email address) or (2) URLField (URL) that triggers a large amount of backtracking in a regular expression.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impactNone
Integrity impactNone
Availability impact—
Exploit probability (EPSS)4%
AV:N/AC:L/Au:N/C:N/I:N/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: http://www.djangoproject.com/weblog/2009/oct/09/security/ ↗
Additional information
- NVD record
- http://www.djangoproject.com/weblog/2009/oct/09/security/Patch
- http://www.securityfocus.com/bid/36655Patch
- http://secunia.com/advisories/36948Advisory
- http://secunia.com/advisories/36968Advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=550457
- http://groups.google.com/group/django-users/browse_thread/thread/15df9e45118dfc51/
- http://www.debian.org/security/2009/dsa-1905
- http://www.openwall.com/lists/oss-security/2009/10/13/6