Security update for Xen

Open Source Vulnerabilities SUSE-SU-2015:1045-1

Xen was updated to fix seven security vulnerabilities: * CVE-2015-4103: Potential unintended writes to host MSI message data field via qemu. (XSA-128, bnc#931625) * CVE-2015-4104: PCI MSI mask bits inadvertently exposed to guests. (XSA-129, bnc#931626) * CVE-2015-4105: Guest triggerable qemu MSI-X pass-through error messages. (XSA-130, bnc#931627) * CVE-2015-4106: Unmediated PCI register access in qemu. (XSA-131, bnc#931628) * CVE-2015-4163: GNTTABOP_swap_grant_ref operation misbehavior. (XSA-134, bnc#932790) * CVE-2015-3209: Heap overflow in qemu pcnet controller allowing guest to host escape. (XSA-135, bnc#932770) * CVE-2015-4164: DoS through iret hypercall handler. (XSA-136, bnc#932996) Security Issues: * CVE-2015-4103 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4103> * CVE-2015-4104 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4104> * CVE-2015-4105 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4105> * CVE-2015-4106 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4106> * CVE-2015-4163 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4163> * CVE-2015-4164 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4164> * CVE-2015-3209 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3209>