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Xen was updated to 4.4.2 to fix multiple vulnerabilities and non-security bugs. The following vulnerabilities were fixed : - CVE-2015-4103: Potential unintended writes to host MSI message data field via qemu (XSA-128) (boo#931625) - CVE-2015-4104: PCI MSI mask bits inadvertently exposed to guests (XSA-129) (boo#931626) - CVE-2015-4105: Guest triggerable qemu MSI-X pass-through error messages (XSA-130) (boo#931627) - CVE-2015-4106: Unmediated PCI register access in qemu (XSA-131) (boo#931628) - CVE-2015-4164: DoS through iret hypercall handler (XSA-136) (boo#932996) - CVE-2015-4163: GNTTABOP_swap_grant_ref operation misbehavior (XSA-134) (boo#932790) - CVE-2015-3209: heap overflow in qemu pcnet controller allowing guest to host escape (XSA-135) (boo#932770) - CVE-2015-3456: Fixed a buffer overflow in the floppy drive emulation, which could be used to denial of service attacks or potential code execution against the host. () - CVE-2015-3340: Xen did not initialize certain fields, which allowed certain remote service domains to obtain sensitive information from memory via a (1) XEN_DOMCTL_gettscinfo or (2) XEN_SYSCTL_getdomaininfolist request. () - CVE-2015-2752: Long latency MMIO mapping operations are not preemptible (XSA-125 boo#922705) - CVE-2015-2756: Unmediated PCI command register access in qemu (XSA-126 boo#922706) - CVE-2015-2751: Certain domctl operations may be abused to lock up the host (XSA-127 boo#922709) - CVE-2015-2151: Hypervisor memory corruption due to x86 emulator flaw (boo#919464 XSA-123) - CVE-2015-2045: Information leak through version information hypercall (boo#918998 XSA-122) - CVE-2015-2044: Information leak via internal x86 system device emulation (boo#918995 (XSA-121) - CVE-2015-2152: HVM qemu unexpectedly enabling emulated VGA graphics backends (boo#919663 XSA-119) - CVE-2014-3615: information leakage when guest sets high resolution (boo#895528) The following non-security bugs were fixed : - xentop: Fix memory leak on read failure - boo#923758: xen dmesg contains bogus output in early boot - boo#921842: Xentop doesn't display disk statistics for VMs using qdisks - boo#919098: L3: XEN blktap device intermittently fails to connect - boo#882089: Windows 2012 R2 fails to boot up with greater than 60 vcpus - boo#903680: Problems with detecting free loop devices on Xen guest startup - boo#861318: xentop reports 'Found interface vif101.0 but domain 101 does not exist.' - boo#901488: Intel ixgbe driver assigns rx/tx queues per core resulting in irq problems on servers with a large amount of CPU cores - boo#910254: SLES11 SP3 Xen VT-d igb NIC doesn't work - boo#912011: high ping latency after upgrade to latest SLES11SP3 on xen Dom0 - boo#906689: let systemd schedule xencommons after network-online.target and remote-fs.target so that xendomains has access to remote shares The following functionality was enabled or enhanced : - Enable spice support in qemu for x86_64 - Add Qxl vga support - Enhancement to virsh/libvirtd 'send-key' command (FATE#317240) - Add domain_migrate_constraints_set API to Xend's http interface (FATE#317239)