CVE-2015-7546

Name	CVE-2015-7546
Description	The identity service in OpenStack Identity (Keystone) before 2015.1.3 (Kilo) and 8.0.x before 8.0.2 (Liberty) and keystonemiddleware (formerly python-keystoneclient) before 1.5.4 (Kilo) and Liberty before 2.3.3 does not properly invalidate authorization tokens when using the PKI or PKIZ token providers, which allows remote authenticated users to bypass intended access restrictions and gain access to cloud resources by manipulating byte fields within a revoked token.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, 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
keystone (PTS)	jessie	2014.1.3-6	vulnerable
	stretch (security), stretch (lts), stretch	2:10.0.0-9+deb9u1	fixed
	buster (security), buster, buster (lts)	2:14.2.0-0+deb10u2	fixed
	bullseye	2:18.0.0-3+deb11u1	fixed
	bookworm	2:22.0.0-2	fixed
	sid, trixie	2:26.0.0-2	fixed
python-keystonemiddleware (PTS)	jessie	1.0.0-3+deb8u1	vulnerable
	stretch	4.9.0-2	fixed
	buster	5.2.0-2	fixed
	bullseye	9.1.0-2	fixed
	bookworm	10.1.0-4	fixed
	sid, trixie	10.7.1-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
keystone	source	(unstable)	2:9.0.0~rc2-1
python-keystonemiddleware	source	(unstable)	3.0.0-1

Notes

[jessie] - keystone <no-dsa> (Too intrusive to backport, needs to switch to different token provider)
[wheezy] - keystone <no-dsa> (Too intrusive to backport, needs to switch to different token provider)
[jessie] - python-keystonemiddleware <no-dsa> (Too intrusive to backport, needs to switch to different token provider)
https://wiki.openstack.org/wiki/OSSN/OSSN-0062
Keystone: <= 2015.1.2, >= 8.0.0 <= 8.0.1
Keystonemiddleware: >= 1.5.0 <= 1.5.3, >= 1.6.0 <= 2.3.2