CVE-2022-2031

Name	CVE-2022-2031
Description	A flaw was found in Samba. The security vulnerability occurs when KDC and the kpasswd service share a single account and set of keys, allowing them to decrypt each other's tickets. A user who has been requested to change their password, can exploit this flaw to obtain and use tickets to other services.
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-5205-1
Debian Bugs	1016449

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
samba (PTS)	bullseye (security), bullseye	2:4.13.13+dfsg-1~deb11u6	fixed
	bookworm, bookworm (security)	2:4.17.12+dfsg-0+deb12u1	fixed
	trixie	2:4.21.2+dfsg-3	fixed
	sid	2:4.21.2+dfsg-4	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
samba	source	bullseye	2:4.13.13+dfsg-1~deb11u5		DSA-5205-1
samba	source	(unstable)	2:4.16.4+dfsg-1			1016449

[buster] - samba <ignored> (Minor issue; affects Samba as AD DC; EOLed. See DSA-5015-1)
https://www.samba.org/samba/security/CVE-2022-2031.html