CVE-2024-56374

Name	CVE-2024-56374
Description	An issue was discovered in Django 5.1 before 5.1.5, 5.0 before 5.0.11, and 4.2 before 4.2.18. Lack of upper-bound limit enforcement in strings passed when performing IPv6 validation could lead to a potential denial-of-service attack. The undocumented and private functions clean_ipv6_address and is_valid_ipv6_address are vulnerable, as is the django.forms.GenericIPAddressField form field. (The django.db.models.GenericIPAddressField model field is not affected.)
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1093049

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
python-django (PTS)	bullseye	2:2.2.28-1~deb11u2	vulnerable
	bullseye (security)	2:2.2.28-1~deb11u4	vulnerable
	bookworm, bookworm (security)	3:3.2.19-1+deb12u1	vulnerable
	sid, trixie	3:4.2.17-2	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
python-django	source	(unstable)	(unfixed)			1093049

Notes

https://www.djangoproject.com/weblog/2025/jan/14/security-releases/
Fixed by: https://github.com/django/django/commit/ad866a1ca3e7d60da888d25d27e46a8adb2ed36e (4.2.18)