CVE-2019-16792

Name	CVE-2019-16792
Description	Waitress through version 1.3.1 allows request smuggling by sending the Content-Length header twice. Waitress would header fold a double Content-Length header and due to being unable to cast the now comma separated value to an integer would set the Content-Length to 0 internally. If two Content-Length headers are sent in a single request, Waitress would treat the request as having no body, thereby treating the body of the request as a new request in HTTP pipelining. This issue is fixed in Waitress 1.4.0.
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-3000-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
waitress (PTS)	jessie, jessie (lts)	0.8.9-2+deb8u1	vulnerable
	stretch (security), stretch (lts), stretch	1.0.1-1+deb9u1	fixed
	buster (security), buster, buster (lts)	1.2.0~b2-2+deb10u1	fixed
	bullseye (security), bullseye	1.4.4-1.1+deb11u1	fixed
	bookworm	2.1.2-2	fixed
	sid, trixie	3.0.1-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin
waitress	source	wheezy	(unfixed)	end-of-life
waitress	source	stretch	1.0.1-1+deb9u1		DLA-3000-1
waitress	source	buster	1.2.0~b2-2+deb10u1
waitress	source	(unstable)	1.4.1-1

Notes

[jessie] - waitress <no-dsa> (Minor issue)
https://github.com/Pylons/waitress/security/advisories/GHSA-4ppp-gpcr-7qf6
https://github.com/Pylons/waitress/commit/575994cd42e83fd772a5f7ec98b2c56751bd3f65