CVE-2016-2125

Name	CVE-2016-2125
Description	It was found that Samba before versions 4.5.3, 4.4.8, 4.3.13 always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-776-1, DSA-3740-1

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
	sid, trixie	2:4.21.0+dfsg-1	fixed

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

Package	Type	Release	Fixed Version	Origin
samba	source	wheezy	2:3.6.6-6+deb7u11	DLA-776-1
samba	source	jessie	2:4.2.14+dfsg-0+deb8u2	DSA-3740-1
samba	source	(unstable)	2:4.5.2+dfsg-2

Notes

https://www.samba.org/samba/security/CVE-2016-2125.html
Patch (with some more) here: https://download.samba.org/pub/samba/patches/security/samba-4.3.12-security-20016-12-19.patch