CVE-2023-46695

Description

An issue was discovered in Django 3.2 before 3.2.23, 4.1 before 4.1.13, and 4.2 before 4.2.7. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.forms.UsernameField is subject to a potential DoS (denial of service) attack via certain inputs with a very large number of Unicode characters.

Predictions

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-46695
• https://github.com/django/django/commit/048a9ebb6ea468426cb4e57c71572cbbd975517f
• https://github.com/django/django/commit/4965bfdde2e5a5c883685019e57d123a3368a75e
• https://github.com/django/django/commit/f9a7fb8466a7ba4857eaf930099b5258f3eafb2b
• https://docs.djangoproject.com/en/4.2/releases/security
• https://github.com/django/django
• https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2023-222.yaml
• https://groups.google.com/forum/#!forum/django-announce
• https://groups.google.com/forum/#%21forum/django-announce
• https://security.netapp.com/advisory/ntap-20231214-0001
• https://www.djangoproject.com/weblog/2023/nov/01/security-releases
• https://docs.djangoproject.com/en/4.2/releases/security/
• https://www.djangoproject.com/weblog/2023/nov/01/security-releases/
• https://www.suse.com/security/cve/CVE-2023-46695.html
• https://security-tracker.debian.org/tracker/CVE-2023-46695