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Fedora 25: 2017-266ab882cd Critical: Memory Safety in Xen

fedora
Calendar Grey March 1, 2017
Scroller Fedora
Fedora 25 Upgrade for Xen resolves memory vulnerability, thwarting possible unauthorized code execution. Full report within.
cirrus_bitblt_cputovideo does not check if memory region is safe [XSA-209, CVE-2017-2620] (#1425420)

Summary

This package contains the XenD daemon and xm command line

tools, needed to manage virtual machines running under the

Xen hypervisor

Update Information:

cirrus_bitblt_cputovideo does not check if memory region is safe [XSA-209, CVE-2017-2620] (#1425420)

Change Log

References


[ 1 ] Bug #1420484 - CVE-2017-2620 Qemu: display: cirrus: potential arbitrary code execution via cirrus_bitblt_cputovideo https://bugzilla.redhat.com/show_bug.cgi?id=1420484

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: 9.fc25
Summary: Xen is a virtual machine monitor

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