CVE-2020-25097

Name	CVE-2020-25097
Description	An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the security controls. This occurs for certain uri_whitespace configuration settings.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-2598-1, DSA-4873-1
Debian Bugs	985068

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
squid (PTS)	bullseye (security), bullseye	4.13-10+deb11u3	fixed
	bookworm, bookworm (security)	5.7-2+deb12u2	fixed
	sid, trixie	6.10-1	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
squid	source	buster	4.6-1+deb10u5	DSA-4873-1
squid	source	(unstable)	4.13-8		985068
squid3	source	stretch	3.5.23-5+deb9u6	DLA-2598-1
squid3	source	(unstable)	(unfixed)

Notes

https://github.com/squid-cache/squid/security/advisories/GHSA-jvf6-h9gj-pmj6
Squid 4: http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_11.patch