CVEvulnerability
CVE-2021-45115
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2022-01-05
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Description
An issue was discovered in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1. UserAttributeSimilarityValidator incurred significant overhead in evaluating a submitted password that was artificially large in relation to the comparison values. In a situation where access to user registration was unrestricted, this provided a potential vector for a denial-of-service attack.
Affected configurations
• djangoproject django (>= 2.2 < 2.2.26)
• djangoproject django (>= 3.2 < 3.2.11)
• djangoproject django (>= 4.0 < 4.0.1)
• fedoraproject fedora 35
References
- https://docs.djangoproject.com/en/4.0/releases/security/ Patch, Vendor Advisory
- https://groups.google.com/forum/#%21forum/django-announce groups.google.com
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20220121-0005/ Third Party Advisory
- https://www.djangoproject.com/weblog/2022/jan/04/security-releases/ Patch, Vendor Advisory
- https://docs.djangoproject.com/en/4.0/releases/security/ Patch, Vendor Advisory
- https://groups.google.com/forum/#%21forum/django-announce groups.google.com
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/ lists.fedoraproject.org
- https://security.netapp.com/advisory/ntap-20220121-0005/ Third Party Advisory
- https://www.djangoproject.com/weblog/2022/jan/04/security-releases/ Patch, Vendor Advisory