CVE-2021-33571

Name	CVE-2021-33571
Description	In Django 2.2 before 2.2.24, 3.x before 3.1.12, and 3.2 before 3.2.4, URLValidator, validate_ipv4_address, and validate_ipv46_address do not prohibit leading zero characters in octal literals. This may allow a bypass of access control that is based on IP addresses. (validate_ipv4_address and validate_ipv46_address are unaffected with Python 3.9.5+..) .
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-2676-1
Debian Bugs	989394

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
python-django (PTS)	buster	1:1.11.29-1~deb10u1	vulnerable
	buster (security)	1:1.11.29-1+deb10u7	vulnerable
	bullseye (security), bullseye	2:2.2.28-1~deb11u1	fixed
	bookworm, sid	3:3.2.18-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
python-django	source	stretch	1:1.10.7-2+deb9u14		DLA-2676-1
python-django	source	(unstable)	2:2.2.24-1			989394

Notes

[buster] - python-django <no-dsa> (Minor issue)
https://www.openwall.com/lists/oss-security/2021/06/02/1
https://github.com/django/django/commit/e1d787f1b36d13b95187f8f425425ae1b98da188 (main)
https://github.com/django/django/commit/f27c38ab5d90f68c9dd60cabef248a570c0be8fc (2.2.24)