Man-In-The-Middle (MitM)

samba is vulnerable to man-in-the-middle vulnerability. This allows a remote attacker to modify the data sent between a Samba server and a client that causes a LDAP protocol-downgrade...

CVE-2016-2112: Undefined Security Weakness

The bundled LDAP client library in Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not recognize the "client ldap sasl wrapping" setting, which allows man-in-the-middle attackers to perform LDAP protocol-downgrade attacks by modifying the client-server data stream...