Security update for samba (important)

Samba was updated to the 4.2.x codestream, bringing some new features and
security fixes (bsc#973832, FATE#320709).

These security issues were fixed:

• CVE-2015-5370: DCERPC server and client were vulnerable to DOS and MITM
  attacks (bsc#936862).
• CVE-2016-2110: A man-in-the-middle could have downgraded NTLMSSP
  authentication (bsc#973031).
• CVE-2016-2111: Domain controller netlogon member computer could have
  been spoofed (bsc#973032).
• CVE-2016-2112: LDAP conenctions were vulnerable to downgrade and MITM
  attack (bsc#973033).
• CVE-2016-2113: TLS certificate validation were missing (bsc#973034).
• CVE-2016-2115: Named pipe IPC were vulnerable to MITM attacks
  (bsc#973036).
• CVE-2016-2118: "Badlock" DCERPC impersonation of authenticated account
  were possible (bsc#971965).

Also the following fixes were done:

• Upgrade on-disk FSRVP server state to new version; (bsc#924519).
• Fix samba.tests.messaging test and prevent potential tdb corruption by
  removing obsolete now invalid tdb_close call; (bsc#974629).
• Align fsrvp feature sources with upstream version.
• Obsolete libsmbsharemodes0 from samba-libs and libsmbsharemodes-devel
  from samba-core-devel; (bsc#973832).
• s3:utils/smbget: Fix recursive download; (bso#6482).
• s3: smbd: posix_acls: Fix check for setting u:g:o entry on a filesystem
  with no ACL support; (bso#10489).
• docs: Add example for domain logins to smbspool man page; (bso#11643).
• s3-client: Add a KRB5 wrapper for smbspool; (bso#11690).
• loadparm: Fix memory leak issue; (bso#11708).
• lib/tsocket: Work around sockets not supporting FIONREAD; (bso#11714).
• ctdb-scripts: Drop use of "smbcontrol winbindd ip-dropped …";
  (bso#11719).
• s3:smbd:open: Skip redundant call to file_set_dosmode when creating a
  new file; (bso#11727).
• param: Fix str_list_v3 to accept ";" again; (bso#11732).
• Real memeory leak(buildup) issue in loadparm; (bso#11740).
• Obsolete libsmbclient from libsmbclient0 and libpdb-devel from
  libsamba-passdb-devel while not providing it; (bsc#972197).
• Getting and setting Windows ACLs on symlinks can change permissions on
  link
• Only obsolete but do not provide gplv2/3 package names; (bsc#968973).
• Enable clustering (CTDB) support; (bsc#966271).
• s3: smbd: Fix timestamp rounding inside SMB2 create; (bso#11703);
  (bsc#964023).
• vfs_fruit: Fix renaming directories with open files; (bso#11065).
• Fix MacOS finder error 36 when copying folder to Samba; (bso#11347).
• s3:smbd/oplock: Obey kernel oplock setting when releasing oplocks;
  (bso#11400).
• Fix copying files with vfs_fruit when using vfs_streams_xattr without
  stream prefix and type suffix; (bso#11466).
• s3:libsmb: Correctly initialize the list head when keeping a list of
  primary followed by DFS connections; (bso#11624).
• Reduce the memory footprint of empty string options; (bso#11625).
• lib/async_req: Do not install async_connect_send_test; (bso#11639).
• docs: Fix typos in man vfs_gpfs; (bso#11641).
• smbd: make "hide dot files" option work with "store dos attributes =
  yes"; (bso#11645).
• smbcacls: Fix uninitialized variable; (bso#11682).
• s3:smbd: Ignore initial allocation size for directory creation;
  (bso#11684).
• Changing log level of two entries to from 1 to 3; (bso#9912).
• vfs_gpfs: Re-enable share modes; (bso#11243).
• wafsamba: Also build libraries with RELRO protection; (bso#11346).
• ctdb: Strip trailing spaces from nodes file; (bso#11365).
• s3-smbd: Fix old DOS client doing wildcard delete - gives a attribute
  type of zero; (bso#11452).
• nss_wins: Do not run into use after free issues when we access memory
  allocated on the globals and the global being reinitialized; (bso#11563).
• async_req: Fix non-blocking connect(); (bso#11564).
• auth: gensec: Fix a memory leak; (bso#11565).
• lib: util: Make non-critical message a warning; (bso#11566).
• Fix winbindd crashes with samlogon for trusted domain user; (bso#11569);
  (bsc#949022).
• smbd: Send SMB2 oplock breaks unencrypted; (bso#11570).
• ctdb: Open the RO tracking db with perms 0600 instead of 0000;
  (bso#11577).
• manpage: Correct small typo error; (bso#11584).
• s3: smbd: If EA’s are turned off on a share don’t allow an SMB2 create
  containing them; (bso#11589).
• Backport some valgrind fixes from upstream master; (bso#11597).
• s3: smbd: have_file_open_below() fails to enumerate open files below an
  open directory handle; (bso#11615).
• docs: Fix some typos in the idmap config section of man 5 smb.conf;
  (bso#11619).