Red Hat Security Advisory 2016-1002-01 - KVM is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM in environments managed by Red Hat Enterprise Virtualization Manager. Security Fix: An out-of-bounds read/write access flaw was found in the way QEMU's VGA emulation with VESA BIOS Extensions support performed read/write operations using 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.
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Red Hat Security Advisory
Synopsis: Important: qemu-kvm-rhev security update
Advisory ID: RHSA-2016:1002-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-1002.html
Issue date: 2016-05-10
CVE Names: CVE-2016-3710
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1. Summary:
An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform
8.0 (Liberty).
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 OpenStack Platform 8.0 (Liberty) - 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-rhev package provides the
user-space component for running virtual machines using KVM in environments
managed by Red Hat Enterprise Virtualization Manager.
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 using 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
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 OpenStack Platform 8.0 (Liberty):
Source:
qemu-kvm-rhev-2.3.0-31.el7_2.13.src.rpm
x86_64:
libcacard-rhev-2.3.0-31.el7_2.13.x86_64.rpm
libcacard-tools-rhev-2.3.0-31.el7_2.13.x86_64.rpm
qemu-img-rhev-2.3.0-31.el7_2.13.x86_64.rpm
qemu-kvm-common-rhev-2.3.0-31.el7_2.13.x86_64.rpm
qemu-kvm-rhev-2.3.0-31.el7_2.13.x86_64.rpm
qemu-kvm-rhev-debuginfo-2.3.0-31.el7_2.13.x86_64.rpm
qemu-kvm-tools-rhev-2.3.0-31.el7_2.13.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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