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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: qemu-kvm security update
Advisory ID:       RHSA-2016:0724-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2016-0724.html
Issue date:        2016-05-09
CVE Names:         CVE-2016-3710 
=====================================================================

1. Summary:

An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

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

Security Fix(es):

* An out-of-bounds read/write access flaw was found in the way QEMU's VGA
emulation with VESA BIOS Extensions (VBE) support performed read/write
operations via I/O port methods. A privileged guest user could use this
flaw to execute arbitrary code on the host with the privileges of the
host's QEMU process. (CVE-2016-3710)

Red Hat would like to thank Wei Xiao (360 Marvel Team) and Qinghao Tang
(360 Marvel Team) for reporting this issue.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

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.

5. Bugs fixed (https://bugzilla.redhat.com/):

1331401 - CVE-2016-3710 qemu: incorrect banked access bounds checking in vga
 module

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
qemu-kvm-1.5.3-105.el7_2.4.src.rpm

x86_64:
libcacard-1.5.3-105.el7_2.4.i686.rpm
libcacard-1.5.3-105.el7_2.4.x86_64.rpm
qemu-img-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-common-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.i686.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-tools-1.5.3-105.el7_2.4.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
libcacard-devel-1.5.3-105.el7_2.4.i686.rpm
libcacard-devel-1.5.3-105.el7_2.4.x86_64.rpm
libcacard-tools-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.i686.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

Source:
qemu-kvm-1.5.3-105.el7_2.4.src.rpm

x86_64:
libcacard-1.5.3-105.el7_2.4.i686.rpm
libcacard-1.5.3-105.el7_2.4.x86_64.rpm
libcacard-devel-1.5.3-105.el7_2.4.i686.rpm
libcacard-devel-1.5.3-105.el7_2.4.x86_64.rpm
libcacard-tools-1.5.3-105.el7_2.4.x86_64.rpm
qemu-img-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-common-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.i686.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-tools-1.5.3-105.el7_2.4.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
qemu-kvm-1.5.3-105.el7_2.4.src.rpm

ppc64:
qemu-img-1.5.3-105.el7_2.4.ppc64.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.ppc64.rpm

ppc64le:
qemu-img-1.5.3-105.el7_2.4.ppc64le.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.ppc64le.rpm

x86_64:
libcacard-1.5.3-105.el7_2.4.i686.rpm
libcacard-1.5.3-105.el7_2.4.x86_64.rpm
qemu-img-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-common-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.i686.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-tools-1.5.3-105.el7_2.4.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
libcacard-1.5.3-105.el7_2.4.ppc.rpm
libcacard-1.5.3-105.el7_2.4.ppc64.rpm
libcacard-devel-1.5.3-105.el7_2.4.ppc.rpm
libcacard-devel-1.5.3-105.el7_2.4.ppc64.rpm
libcacard-tools-1.5.3-105.el7_2.4.ppc64.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.ppc.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.ppc64.rpm

ppc64le:
libcacard-1.5.3-105.el7_2.4.ppc64le.rpm
libcacard-devel-1.5.3-105.el7_2.4.ppc64le.rpm
libcacard-tools-1.5.3-105.el7_2.4.ppc64le.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.ppc64le.rpm

x86_64:
libcacard-devel-1.5.3-105.el7_2.4.i686.rpm
libcacard-devel-1.5.3-105.el7_2.4.x86_64.rpm
libcacard-tools-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.i686.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
qemu-kvm-1.5.3-105.el7_2.4.src.rpm

x86_64:
libcacard-1.5.3-105.el7_2.4.i686.rpm
libcacard-1.5.3-105.el7_2.4.x86_64.rpm
qemu-img-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-common-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.i686.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-tools-1.5.3-105.el7_2.4.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
libcacard-devel-1.5.3-105.el7_2.4.i686.rpm
libcacard-devel-1.5.3-105.el7_2.4.x86_64.rpm
libcacard-tools-1.5.3-105.el7_2.4.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.i686.rpm
qemu-kvm-debuginfo-1.5.3-105.el7_2.4.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2016-3710
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2016 Red Hat, Inc.
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