CVE-2009-2622

Name	CVE-2009-2622
Description	Squid 3.0 through 3.0.STABLE16 and 3.1 through 3.1.0.11 allows remote attackers to cause a denial of service via malformed requests including (1) "missing or mismatched protocol identifier," (2) missing or negative status value," (3) "missing version," or (4) "missing or invalid status number," related to (a) HttpMsg.cc and (b) HttpReply.cc.
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-1843-1, DSA-1843-2
NVD severity	medium (attack range: remote)
Debian Bugs	538989

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
squid (PTS)	buster, sid	4.4-1	fixed
squid3 (PTS)	jessie	3.4.8-6+deb8u5	fixed
	jessie (security)	3.4.8-6+deb8u6	fixed
	stretch (security), stretch	3.5.23-5+deb9u1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
squid	source	(unstable)	(not affected)
squid	source	etch	(not affected)		DSA-1843-1
squid3	source	(unstable)	3.0.STABLE18-1	medium		538989
squid3	source	lenny	3.0.STABLE8-3+lenny1	medium	DSA-1843-1

- squid <not-affected> (see NOTE)
squid 2.x not affected, according to
http://www.squid-cache.org/Advisories/SQUID-2009_2.txt