CVE-2009-1890

Name	CVE-2009-1890
Description	The stream_reqbody_cl function in mod_proxy_http.c in the mod_proxy module in the Apache HTTP Server before 2.3.3, when a reverse proxy is configured, does not properly handle an amount of streamed data that exceeds the Content-Length value, which allows remote attackers to cause a denial of service (CPU consumption) via crafted requests.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-1834-1
Debian Bugs	536718

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
apache2 (PTS)	buster	2.4.38-3+deb10u8	fixed
	buster (security)	2.4.38-3+deb10u10	fixed
	bullseye	2.4.56-1~deb11u2	fixed
	bullseye (security)	2.4.59-1~deb11u1	fixed
	bookworm	2.4.57-2	fixed
	bookworm (security)	2.4.59-1~deb12u1	fixed
	trixie	2.4.58-1	fixed
	sid	2.4.59-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
apache2	source	etch	2.2.3-4+etch9		DSA-1834-1
apache2	source	lenny	2.2.9-10+lenny4
apache2	source	(unstable)	2.2.11-7	medium		536718

[etch] - apache2 <not-affected> (bug introduced in 2.2.5)