The remote FreeBSD host is missing one or more security-related updates.
Samba team reports : [CVE-2015-5370] Errors in Samba DCE-RPC code can lead to denial of service (crashes and high cpu consumption) and man in the middle attacks. [CVE-2016-2110] The feature negotiation of NTLMSSP is not downgrade protected. A man in the middle is able to clear even required flags, especially NTLMSSP_NEGOTIATE_SIGN and NTLMSSP_NEGOTIATE_SEAL. [CVE-2016-2111] When Samba is configured as Domain Controller it allows remote attackers to spoof the computer name of a secure channel's endpoints, and obtain sensitive session information, by running a crafted application and leveraging the ability to sniff network traffic. [CVE-2016-2112] A man in the middle is able to downgrade LDAP connections to no integrity protection. [CVE-2016-2113] Man in the middle attacks are possible for client triggered LDAP connections (with ldaps://) and ncacn_http connections (with https://). [CVE-2016-2114] Due to a bug Samba doesn't enforce required smb signing, even if explicitly configured. [CVE-2016-2115] The protection of DCERPC communication over ncacn_np (which is the default for most the file server related protocols) is inherited from the underlying SMB connection. [CVE-2016-2118] a.k.a. BADLOCK. A man in the middle can intercept any DCERPC traffic between a client and a server in order to impersonate the client and get the same privileges as the authenticated user account. This is most problematic against active directory domain controllers.