CVE-2009-3695
Description
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1.1.1-1 |
| sid | Fixed | 1.1.1-1 |
| forky | Fixed | 1.1.1-1 |
| bullseye | Fixed | 1.1.1-1 |
| bookworm | Fixed | 1.1.1-1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2009-3695
- https://github.com/django/django/commit/594a28a9044120bed58671dde8a805c9e0f6c79a
- https://github.com/django/django/commit/e3e992e18b368fcd56aabafc1b5bf80a6e11b495
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53727
- https://github.com/django/django
- https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2009-4.yaml
- https://web.archive.org/web/20091013093057/http://secunia.com/advisories/36968
- https://web.archive.org/web/20091017070244/http://secunia.com/advisories/36948
- https://web.archive.org/web/20200228171918/http://www.securityfocus.com/bid/36655
- 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.djangoproject.com/weblog/2009/oct/09/security
- http://www.openwall.com/lists/oss-security/2009/10/13/6
- http://www.securityfocus.com/bid/36655
- http://groups.google.com/group/django-users/browse_thread/thread/15df9e45118dfc51/
- http://secunia.com/advisories/36948
- http://www.vupen.com/english/advisories/2009/2871
- http://www.djangoproject.com/weblog/2009/oct/09/security/
- http://secunia.com/advisories/36968
- https://security-tracker.debian.org/tracker/CVE-2009-3695
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.