CVE-2021-38155

Name	CVE-2021-38155
Description	OpenStack Keystone 10.x through 16.x before 16.0.2, 17.x before 17.0.1, 18.x before 18.0.1, and 19.x before 19.0.1 allows information disclosure during account locking (related to PCI DSS features). By guessing the name of an account and failing to authenticate multiple times, any unauthenticated actor could both confirm the account exists and obtain that account's corresponding UUID, which might be leveraged for other unrelated attacks. All deployments enabling security_compliance.lockout_failure_attempts are affected.
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-3714-1
Debian Bugs	992070

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
keystone (PTS)	bullseye	2:18.0.0-3+deb11u1	fixed
	bullseye (security)	2:18.1.0-1+deb11u3	fixed
	bookworm	2:22.0.2-0+deb12u1	fixed
	bookworm (security)	2:22.0.2-0+deb12u3	fixed
	trixie	2:27.0.0-3+deb13u1	fixed
	trixie (security)	2:27.0.0-3+deb13u4	fixed
	forky, sid	2:29.0.1-2	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
keystone	source	stretch	(unfixed)	end-of-life
keystone	source	buster	2:14.2.0-0+deb10u2		DLA-3714-1
keystone	source	bullseye	2:18.0.0-3+deb11u1
keystone	source	(unstable)	2:19.0.0-3			992070

[stretch] - keystone <end-of-life> (Keystone not supported in stretch)
https://launchpad.net/bugs/1688137