CVE-2024-37568

Name	CVE-2024-37568
Description	lepture Authlib before 1.3.1 has algorithm confusion with asymmetric public keys. Unless an algorithm is specified in a jwt.decode call, HMAC verification is allowed with any asymmetric public key. (This is similar to CVE-2022-29217 and CVE-2024-33663.)
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)
References	DLA-4352-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
python-authlib (PTS)	bullseye	0.15.4-1	vulnerable
	bullseye (security)	0.15.4-1+deb11u1	fixed
	bookworm	1.2.0-1	vulnerable
	trixie	1.6.0-1	fixed
	forky, sid	1.6.5-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
python-authlib	source	bullseye	0.15.4-1+deb11u1		DLA-4352-1
python-authlib	source	(unstable)	1.3.1-1

Notes

[bookworm] - python-authlib <no-dsa> (Minor issue)
https://github.com/lepture/authlib/issues/654
https://github.com/lepture/authlib/commit/3bea812acefebc9ee108aa24557be3ba8971daf1 (v1.3.1)