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Fedora 22: FEDORA-2015-5295 Critical Denial of Service in Xen

fedora
Calendar Grey April 21, 2015
Dist Fedora Esm H88
Urgent security notice for Fedora 22's xen component highlighting multiple critical vulnerabilities, particularly involving potential intrusion and data breaches.
Long latency MMIO mapping operations are not preemptible [XSA-125, CVE-2015-2752] Unmediated PCI command register access in qemu [XSA-126, CVE-2015-2756] Certain domctl operations ...

Summary

This package contains the XenD daemon and xm command line

tools, needed to manage virtual machines running under the

Xen hypervisor

Update Information:

Long latency MMIO mapping operations are not preemptible [XSA-125, CVE-2015-2752] Unmediated PCI command register access in qemu [XSA-126, CVE-2015-2756] Certain domctl operations may be abused to lock up the host [XSA-127, CVE-2015-2751]

Change Log

References


[ 1 ] Bug #1203732 - CVE-2015-2752 xen: long latency MMIO mapping operations are not preemptible (xsa125) https://bugzilla.redhat.com/show_bug.cgi?id=1203732 [ 2 ] Bug #1203737 - CVE-2015-2756 xen: unmediated PCI command register access in qemu (xsa126) https://bugzilla.redhat.com/show_bug.cgi?id=1203737 [ 3 ] Bug #1203745 - CVE-2015-2751 xen: certain domctl operations may be abused to lock up the host https://bugzilla.redhat.com/show_bug.cgi?id=1203745

Update Instructions

This update can be installed with the "yum" update program. Use su -c 'yum update xen' at the command line. For more information, refer to "Managing Software with yum", available at .

Severity
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Name: xen
Product: Fedora 22
Version: 4.5.0
Release: 7.fc22
Summary: Xen is a virtual machine monitor

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