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Fedora 21: FEDORA-2015-f150b2a8c8 Moderate: Xen DoS Issues

fedora
Calendar Grey November 20, 2015
Scroller Fedora
Fedora 21 receives Xen security patch tackling CPU stalls caused by endless loop faults. Essential enhancements implemented.
x86: CPU lockup during exception delivery [XSA-156, CVE-2015-5307, CVE-2015-8104]

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: CPU lockup during exception delivery [XSA-156, CVE-2015-5307, CVE-2015-8104]

Topics%20covered

Topics Covered

security advisory moderate Fedora DoS xen exception handling

Change Log

References


[ 1 ] Bug #1277172 - CVE-2015-5307 virt: guest to host DoS by triggering an infinite loop in microcode via #AC exception https://bugzilla.redhat.com/show_bug.cgi?id=1277172 [ 2 ] Bug #1278496 - CVE-2015-8104 virt: guest to host DoS by triggering an infinite loop in microcode via #DB exception https://bugzilla.redhat.com/show_bug.cgi?id=1278496

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
important
Lowest
Low
Medium
High
Critical

Name: xen
Product: Fedora 21
Version: 4.4.3
Release: 8.fc21
URL: https://xenproject.org/
Summary: Xen is a virtual machine monitor

Topics%20covered

Topics Covered

security advisory moderate Fedora DoS xen exception handling

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