This update fixes the following security issues:
bsc#956832 - CVE-2015-8345: xen: qemu: net: eepro100: infinite loop in processing command block list
bsc#956592 - xen: virtual PMU is unsupported (XSA-163)
bsc#956408 - CVE-2015-8339, CVE-2015-8340: xen: XENMEM_exchange error handling issues (XSA-159)
bsc#956409 - CVE-2015-8341: xen: libxl leak of pv kernel and initrd on error (XSA-160)
bsc#956411 - CVE-2015-7504: xen: heap buffer overflow vulnerability in pcnet emulator (XSA-162)
bsc#947165 - CVE-2015-7311: xen: libxl fails to honour readonly flag on disks with qemu-xen (xsa-142)
bsc#954405 - CVE-2015-8104: Xen: guest to host DoS by triggering an infinite loop in microcode via #DB exception
bsc#954018 - CVE-2015-5307: xen: x86: CPU lockup during fault delivery (XSA-156) CVE-2015-5307-xsa156.patch
bsc#950704 - CVE-2015-7970: xen: x86: Long latency populate-on-demand operation is not preemptible (XSA-150) 563212c9-x86-PoD-Eager-sweep-for-zeroed-pages.patch
bsc#951845 - CVE-2015-7972: xen: x86: populate-on-demand balloon size inaccuracy can crash guests (XSA-153) xsa153-libxl.patch xend-xsa153.patch
Drop 5604f239-x86-PV-properly-populate-descriptor-tables.patch
bsc#950703 - CVE-2015-7969: xen: leak of main per-domain vcpu pointer array (DoS) (XSA-149)