CVE-2020-15049

Name	CVE-2020-15049
Description	An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing "+\ "-" or an uncommon shell whitespace character prefix to the length field-value.
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-2394-1, DSA-4732-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
squid (PTS)	buster	4.6-1+deb10u7	fixed
	buster (security)	4.6-1+deb10u8	fixed
	bullseye (security), bullseye	4.13-10+deb11u2	fixed
	bookworm, sid	5.7-1	fixed

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

Package	Type	Release	Fixed Version	Origin
squid	source	buster	4.6-1+deb10u3	DSA-4732-1
squid	source	(unstable)	4.12-1
squid3	source	stretch	3.5.23-5+deb9u5	DLA-2394-1
squid3	source	(unstable)	(unfixed)

Notes

https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5
Squid 4: http://www.squid-cache.org/Versions/v4/changesets/squid-4-ea12a34d338b962707d5078d6d1fc7c6eb119a22.patch