CVE-2016-2119

Name	CVE-2016-2119
Description	libcli/smb/smbXcli_base.c in Samba 4.x before 4.2.14, 4.3.x before 4.3.11, and 4.4.x before 4.4.5 allows man-in-the-middle attackers to bypass a client-signing protection mechanism, and consequently spoof SMB2 and SMB3 servers, via the (1) SMB2_SESSION_FLAG_IS_GUEST or (2) SMB2_SESSION_FLAG_IS_NULL flag.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DSA-3740-1
Debian Bugs	830195

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
samba (PTS)	buster, buster (security)	2:4.9.5+dfsg-5+deb10u3	fixed
	bullseye	2:4.13.13+dfsg-1~deb11u4	fixed
	bullseye (security)	2:4.13.13+dfsg-1~deb11u5	fixed
	bookworm, sid	2:4.16.4+dfsg-2	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
samba	source	wheezy	(not affected)
samba	source	jessie	2:4.2.14+dfsg-0+deb8u2	DSA-3740-1
samba	source	(unstable)	2:4.4.5+dfsg-1		830195

[wheezy] - samba <not-affected> (Affects Samba 4.0.0 to 4.4.0)
https://www.samba.org/samba/security/CVE-2016-2119.html
Affects Samba 4.0.0 to 4.4.4