Security update for samba and resource-agents (important)

This update provides Samba 4.6.7, which fixes the following issues:

• CVE-2017-11103: Metadata were being taken from the unauthenticated
  plaintext (the Ticket) rather than the authenticated and encrypted KDC
  response. (bsc#1048278)
• Fix cephwrap_chdir(). (bsc#1048790)
• Fix ctdb logs to /var/log/log.ctdb instead of /var/log/ctdb.
  (bsc#1048339)
• Fix inconsistent ctdb socket path. (bsc#1048352)
• Fix non-admin cephx authentication. (bsc#1048387)
• CTDB cannot start when there is no persistent database. (bsc#1052577)

The CTDB resource agent was also fixed to not fail when the database is
empty.