CVE-2020-12690

Name	CVE-2020-12690
Description	An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The list of roles provided for an OAuth1 access token is silently ignored. Thus, when an access token is used to request a keystone token, the keystone token contains every role assignment the creator had for the project. This results in the provided keystone token having more role assignments than the creator intended, possibly giving unintended escalated access.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-4679-1
Debian Bugs	959900

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
	bookworm	2:22.0.0-2	fixed
	trixie	2:26.0.0-2	fixed
	sid	2:26.0.0-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
keystone	source	jessie	(unfixed)	end-of-life
keystone	source	stretch	(unfixed)	end-of-life
keystone	source	buster	2:14.2.0-0+deb10u1		DSA-4679-1
keystone	source	(unstable)	2:17.0.0~rc2-1			959900

Notes

[stretch] - keystone <end-of-life> (Not supported in stretch LTS)
[jessie] - keystone <end-of-life> (Not supported in Jessie LTS)
https://bugs.launchpad.net/keystone/+bug/1873290
https://www.openwall.com/lists/oss-security/2020/05/06/6