samba4Full: 4.3.6 -> 4.3.8 (#14661)

Fixes the following security issues:
* CVE-2015-5370 (Multiple errors in DCE-RPC code)
* CVE-2016-2110 (Man in the middle attacks possible with NTLMSSP)
* CVE-2016-2111 (NETLOGON Spoofing Vulnerability)
* CVE-2016-2112 (LDAP client and server don't enforce integrity)
* CVE-2016-2113 (Missing TLS certificate validation)
* CVE-2016-2114 ("server signing = mandatory" not enforced)
* CVE-2016-2115 (SMB IPC traffic is not integrity protected)
* CVE-2016-2118 (SAMR and LSA man in the middle attacks possible)

See http://badlock.org/ for details.

(cherry picked from commit 192dc27dc3694023dcaca6f5a34a2788172240d3)

pkgs/servers/samba/4.x.nix

···
 with lib;
 
 stdenv.mkDerivation rec {
-  name = "samba-4.3.6";
+  name = "samba-4.3.8";
 
   src = fetchurl {
     url = "mirror://samba/pub/samba/stable/${name}.tar.gz";
-    sha256 = "0929fpk2pq4v389naai519xvsm9bzpar4jlgjxwlx1cnn6jyql9j";
+    sha256 = "041b5frh4ikcka922aqhqjvlv4w2s7jycyykpvsknj0a79ncd79p";
   };
 
   patches =