These are all security issues fixed in the gdm-3.26.2.1-13.19.2 package on the GA media of SUSE Linux Enterprise Module for Desktop Applications 15 SP1.
SUSE Linux Enterprise Desktop 15 SP1 SUSE Linux Enterprise High Performance Computing 15 SP1 SUSE Linux Enterprise Module for Desktop Applications 15 SP1 SUSE Linux Enterprise Server 15 SP1 SUSE Linux Enterprise Server for SAP Applications 15 SP1 SUSE Linux Enterprise Storage 6 SUSE Manager Proxy 4.0 SUSE Manager Server 4.0