CVE-2009-3695

Name	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
References	DSA-1905-1
Debian Bugs	550457

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
python-django (PTS)	stretch	1:1.10.7-2+deb9u9	fixed
	stretch (security)	1:1.10.7-2+deb9u17	fixed
	buster, buster (security)	1:1.11.29-1~deb10u1	fixed
	bullseye	2:2.2.26-1~deb11u1	fixed
	bookworm	2:3.2.13-1	fixed
	sid	2:4.0.5-2	fixed

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

Package	Type	Release	Fixed Version	Urgency	Debian Bugs
python-django	source	etch	(not affected)
python-django	source	lenny	1.0.2-1+lenny2
python-django	source	(unstable)	1.1.1-1	medium	550457

[etch] - python-django <not-affected> (introduced in 1.0)