CVE-2023-49606

Name	CVE-2023-49606
Description	A use-after-free vulnerability exists in the HTTP Connection Headers parsing in Tinyproxy 1.11.1 and Tinyproxy 1.10.0. A specially crafted HTTP header can trigger reuse of previously freed memory, which leads to memory corruption and could lead to remote code execution. An attacker needs to make an unauthenticated HTTP request to trigger this vulnerability.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1070395

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
tinyproxy (PTS)	jessie, jessie (lts)	1.8.3-3+deb8u1	vulnerable
	stretch	1.8.4-3~deb9u2	vulnerable
	buster	1.10.0-2+deb10u1	vulnerable
	bullseye	1.10.0-5	vulnerable
	bookworm	1.11.1-2.1	vulnerable
	sid, trixie	1.11.2-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Debian Bugs
tinyproxy	source	jessie	(unfixed)	end-of-life
tinyproxy	source	stretch	(unfixed)	end-of-life
tinyproxy	source	(unstable)	1.11.1-4		1070395

Notes

https://talosintelligence.com/vulnerability_reports/TALOS-2023-1889
https://github.com/tinyproxy/tinyproxy/issues/533
https://github.com/tinyproxy/tinyproxy/commit/12a8484265f7b00591293da492bb3c9987001956