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Fedora 25 Xen Update ID 2016-1b868c23a9 Critical: Emulation Problem

fedora
Calendar Grey December 19, 2016
Dist Fedora Esm H88
Fedora 25 introduces an essential upgrade for Xen, resolving emulation issues that were hindering the performance of ARM guests.
x86 CMPXCHG8B emulation fails to ignore operand size override [XSA-200, CVE-2016-9932] (#1404262) ---- ARM guests may induce host asynchronous abort [XSA-201, CVE-2016-9815,

Summary

This package contains the XenD daemon and xm command line

tools, needed to manage virtual machines running under the

Xen hypervisor

Update Information:

x86 CMPXCHG8B emulation fails to ignore operand size override [XSA-200, CVE-2016-9932] (#1404262) ---- ARM guests may induce host asynchronous abort [XSA-201, CVE-2016-9815,

Topics%20covered

Topics Covered

security advisory fedora critical xen emulation issue host abort

Change Log

References


[ 1 ] Bug #1399745 - CVE-2016-9932 xsa200 xen: x86 CMPXCHG8B emulation fails to ignore operand size override (XSA-200) https://bugzilla.redhat.com/show_bug.cgi?id=1399745 [ 2 ] Bug #1399746 - CVE-2016-9815 CVE-2016-9816 CVE-2016-9817 CVE-2016-9818 xsa201 xen: ARM guests may induce host asynchronous abort (XSA-201) https://bugzilla.redhat.com/show_bug.cgi?id=1399746 [ 3 ] Bug #1334398 - CVE-2016-9921 CVE-2016-9922 Qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy https://bugzilla.redhat.com/show_bug.cgi?id=1334398 [ 4 ] Bug #1402276 - CVE-2016-9913 CVE-2016-9914 CVE-2016-9915 CVE-2016-9916 Qemu: 9pfs: memory leakage via proxy/handle callbacks https://bugzilla.redhat.com/show_bug.cgi?id=1402276

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade xen' at the command line. For more information, refer to the dnf documentation available at https://dnf.readthedocs.io/en/latest/command_ref.html

Severity
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Name: xen
Product: Fedora 25
Version: 4.7.1
Release: 5.fc25
URL: https://xenproject.org/
Summary: Xen is a virtual machine monitor

Topics%20covered

Topics Covered

security advisory fedora critical xen emulation issue host abort

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