CVE-2024-14029

Name	CVE-2024-14029
Description	Tornado before 6.4.1 ignores duplicate Transfer-Encoding: chunked headers, treating requests as having no message body and parsing the chunked body as a subsequent request. Attackers can exploit this inconsistency when Tornado is deployed behind proxies to perform HTTP request smuggling, enabling access control bypass, cache poisoning, or connection desynchronization.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
python-tornado (PTS)	bookworm, bookworm (security)	6.2.0-3+deb12u4	vulnerable
	trixie (security), trixie	6.4.2-3+deb13u2	fixed
	forky, sid	6.5.5-5	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
python-tornado	source	(unstable)	6.4.1-1

https://github.com/tornadoweb/tornado/security/advisories/GHSA-753j-mpmx-qq6g