The manager_dispatch_notify_fd function in systemd allows local users to cause a denial of service (system hang) via a zero-length message received over a notify socket, which causes an error to be returned and the notification handler to be disabled.
openSUSE 13.2 openSUSE Leap 42.1 SUSE Linux Enterprise Build System Kit 12 SP1 SUSE Linux Enterprise Desktop 12 SP1 SUSE Linux Enterprise for SAP 12 SUSE Linux Enterprise High Performance Computing 12 SUSE Linux Enterprise Module for Containers 12 SUSE Linux Enterprise Server 12 SUSE Linux Enterprise Server 12 SP1 SUSE Linux Enterprise Server 12 SP3 SUSE Linux Enterprise Server 12 SP4 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server 12-LTSS SUSE Linux Enterprise Server for SAP Applications 12 SUSE Linux Enterprise Server for SAP Applications 12 SP1 SUSE Linux Enterprise Server for SAP Applications 12 SP3 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE Linux Enterprise Server for SAP Applications 12-LTSS SUSE Linux Enterprise Software Development Kit 12 SP1