CVE-2018-1000164

Name	CVE-2018-1000164
Description	gunicorn version 19.4.5 contains a CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers vulnerability in "process_headers" function in "gunicorn/http/wsgi.py" that can result in an attacker causing the server to return arbitrary HTTP headers. This vulnerability appears to have been fixed in 19.5.0.
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-1357-1, DSA-4186-1
Debian Bugs	896548

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
gunicorn (PTS)	bullseye	20.1.0-1	fixed
	bullseye (security)	20.1.0-1+deb11u1	fixed
	bookworm	20.1.0-6	fixed
	sid, trixie	23.0.0-1	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
gunicorn	source	wheezy	0.14.5-3+deb7u2	DLA-1357-1
gunicorn	source	jessie	19.0-1+deb8u1	DSA-4186-1
gunicorn	source	(unstable)	19.5.0-1		896548

Notes

https://epadillas.github.io/2018/04/02/http-header-splitting-in-gunicorn-19.4.5
https://github.com/benoitc/gunicorn/issues/1227
https://github.com/benoitc/gunicorn/commit/5263a4ef2a63c62216680876f3813959839608ff