Univention Corporate Server 4.3 erratum 336 (security)

This update addresses the following issues:
* Server: Replication unspecified vulnerability (CVE-2017-10268)
* Server: Optimizer unspecified vulnerability (CVE-2017-10378)
* Replication in sql/event_data_objects.cc occurs before ACL checks
  (CVE-2017-15365)
* Server : Partition unspecified vulnerability (CVE-2018-2562)
* InnoDB unspecified vulnerability (CVE-2018-2612)
* Server: DDL unspecified vulnerability (CVE-2018-2622)
* Server: Optimizer unspecified vulnerability (CVE-2018-2640)
* Server: Optimizer unspecified vulnerability (CVE-2018-2665)
* Server: Optimizer unspecified vulnerability (CVE-2018-2668)
* Server: Replication unspecified vulnerability (CVE-2018-2755)
* Client programs unspecified vulnerability (CVE-2018-2761)
* InnoDB unspecified vulnerability (CVE-2018-2766)
* use of SSL/TLS not enforced in libmysqld (Return of BACKRONYM)
  (CVE-2018-2767)
* Server: Locking unspecified vulnerability (CVE-2018-2771)
* Server: Optimizer unspecified vulnerability (CVE-2018-2781)
* InnoDB unspecified vulnerability (CVE-2018-2782)
* InnoDB unspecified vulnerability (CVE-2018-2784)
* InnoDB unspecified vulnerability (CVE-2018-2787)
* Server: DDL unspecified vulnerability (CVE-2018-2813)
* Server: DDL unspecified vulnerability (CVE-2018-2817)
* InnoDB unspecified vulnerability (CVE-2018-2819)
* MyISAM unspecified vulnerability (CVE-2018-3058)
* Server: Security: Privileges unspecified vulnerability (CVE-2018-3063)
* InnoDB unspecified vulnerability (CVE-2018-3064)
* Server: Options unspecified vulnerability (CVE-2018-3066)
* Client programs unspecified vulnerability (CVE-2018-3081)
* InnoDB unspecified vulnerability (CVE-2018-3143)
* InnoDB unspecified vulnerability (CVE-2018-3156)
* Client programs unspecified vulnerability (CVE-2018-3174)
* InnoDB unspecified vulnerability (CVE-2018-3251)
* Server: Storage Engines unspecified vulnerability (CVE-2018-3282)