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Test ID:
Category:Red Hat Local Security Checks
Title:RedHat Update for qemu-kvm RHSA-2015:0867-01
Summary:The remote host is missing an update for the 'qemu-kvm'; package(s) announced via the referenced advisory.
The remote host is missing an update for the 'qemu-kvm'
package(s) announced via the referenced advisory.

Vulnerability Insight:
KVM (Kernel-based Virtual Machine) is a full virtualization solution for
Linux on AMD64 and Intel 64 systems. The qemu-kvm package provides the
user-space component for running virtual machines using KVM.

It was found that the Cirrus blit region checks were insufficient. A
privileged guest user could use this flaw to write outside of VRAM-
allocated buffer boundaries in the host's QEMU process address space with
attacker-provided data. (CVE-2014-8106)

This issue was found by Paolo Bonzini of Red Hat.

This update also fixes the following bug:

* Previously, the effective downtime during the last phase of a live
migration would sometimes be much higher than the maximum downtime
specified by 'migration_downtime' in vdsm.conf. This problem has been
corrected. The value of 'migration_downtime' is now honored and the
migration is aborted if the downtime cannot be achieved. (BZ#1142756)

All qemu-kvm users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing this
update, shut down all running virtual machines. Once all virtual machines
have shut down, start them again for this update to take effect.

Affected Software/OS:
qemu-kvm on Red Hat Enterprise Linux Desktop (v. 6),
Red Hat Enterprise Linux Server (v. 6),
Red Hat Enterprise Linux Workstation (v. 6)

Please Install the Updated Packages.

CVSS Score:

CVSS Vector:

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2014-8106
BugTraq ID: 71477
Debian Security Information: DSA-3087 (Google Search)
Debian Security Information: DSA-3088 (Google Search)
RedHat Security Advisories: RHSA-2015:0349
RedHat Security Advisories: RHSA-2015:0624
RedHat Security Advisories: RHSA-2015:0643
RedHat Security Advisories: RHSA-2015:0795
RedHat Security Advisories: RHSA-2015:0867
RedHat Security Advisories: RHSA-2015:0868
RedHat Security Advisories: RHSA-2015:0891
XForce ISS Database: qemu-cve20148106-sec-bypass(99126)
CopyrightCopyright (C) 2015 Greenbone Networks GmbH

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