xen was updated to version 4.4.3 to fix nine security issues. These security issues were fixed: - CVE-2015-4037: The slirp_smb function in net/slirp.c created temporary files with predictable names, which allowed local users to cause a denial of service by creating /tmp/qemu-smb.*-* files before the program . - CVE-2014-0222: Integer overflow in the qcow_open function allowed remote attackers to cause a denial of service via a large L2 table in a QCOW version 1 image . - CVE-2015-7835: Uncontrolled creation of large page mappings by PV guests . - CVE-2015-7311: libxl in Xen did not properly handle the readonly flag on disks when using the qemu-xen device model, which allowed local guest users to write to a read-only disk image . - CVE-2015-5239: Integer overflow in vnc_client_read and protocol_client_msg . - CVE-2015-6815: With e1000 NIC emulation support it was possible to enter an infinite loop . - CVE-2015-7969: Leak of main per-domain vcpu pointer array leading to denial of service . - CVE-2015-7969: Leak of per-domain profiling- related vcpu pointer array leading to denial of service . - CVE-2015-7971: Some pmu and profiling hypercalls log without rate limiting . These non-security issues were fixed: - bsc#907514: Bus fatal error: SLES 12 sudden reboot has been observed - bsc#910258: SLES12 Xen host crashes with FATAL NMI after shutdown of guest with VT-d NIC - bsc#918984: Bus fatal error: SLES11-SP4 sudden reboot has been observed - bsc#923967: Partner-L3: Bus fatal error: SLES11-SP3 sudden reboot has been observed - bnc#901488: Intel ixgbe driver assigns rx/tx queues per core resulting in irq problems on servers with a large amount of CPU cores - bsc#945167: Running command: xl pci-assignable-add 03:10.1 secondly show errors - bsc#949138: Setting vcpu affinity under Xen causes libvirtd abort - bsc#949549: xm create hangs when maxmen value is enclosed in quotes