CVE-2009-3622

Name	CVE-2009-3622
Description	Algorithmic complexity vulnerability in wp-trackback.php in WordPress before 2.8.5 allows remote attackers to cause a denial of service (CPU consumption and server hang) via a long title parameter in conjunction with a charset parameter composed of many comma-separated "UTF-8" substrings, related to the mb_convert_encoding function in PHP.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
wordpress (PTS)	buster	5.0.15+dfsg1-0+deb10u1	fixed
	buster (security)	5.0.21+dfsg1-0+deb10u1	fixed
	bullseye (security), bullseye	5.7.8+dfsg1-0+deb11u2	fixed
	bookworm	6.1.1+dfsg1-1	fixed
	trixie	6.5+dfsg1-1	fixed
	sid	6.5.2+dfsg1-1	fixed

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

Package	Type	Release	Fixed Version
wordpress	source	etch	2.0.10-1etch6
wordpress	source	lenny	2.5.1-11+lenny3
wordpress	source	(unstable)	2.8.5-1

http://seclists.org/fulldisclosure/2009/Oct/263