CVE-2016-2126

Name	CVE-2016-2126
Description	Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Attribute Certificate) checksum. A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions.
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-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	2:4.21.1+dfsg-2	fixed

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

Package	Type	Release	Fixed Version	Origin
samba	source	wheezy	(not affected)
samba	source	jessie	2:4.2.14+dfsg-0+deb8u2	DSA-3740-1
samba	source	(unstable)	2:4.5.2+dfsg-2

[wheezy] - samba <not-affected> (Affects only Samba 4.0.0 to 4.5.2)
https://www.samba.org/samba/security/CVE-2016-2126.html