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Red Hat: RHSA-2016:1019-01 Important: QEMU-KVM-RHEV Security Fix

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Calendar Grey May 11, 2016
Scroller Redhat
Red Hat provides a vital update for qemu-kvm-rhev, addressing a significant security issue in the OpenStack platform.
An update for qemu-kvm-rhev is now available for Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6

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.

Summary

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 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.

Topics%20covered

Topics Covered

security advisory update red hat security fix important out-of-bounds qemu-kvm-rhev

References

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

Package List

Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6:
Source: qemu-kvm-rhev-0.12.1.2-2.491.el6_8.1.src.rpm
x86_64: qemu-img-rhev-0.12.1.2-2.491.el6_8.1.x86_64.rpm qemu-kvm-rhev-0.12.1.2-2.491.el6_8.1.x86_64.rpm qemu-kvm-rhev-debuginfo-0.12.1.2-2.491.el6_8.1.x86_64.rpm qemu-kvm-rhev-tools-0.12.1.2-2.491.el6_8.1.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/


Severity
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Advisory ID: RHSA-2016:1019-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2016:1019.html
Issue date: 2016-05-11

Topic

An update for qemu-kvm-rhev is now available for Red Hat Enterprise LinuxOpenStack Platform 5.0 (Icehouse) for RHEL 6.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory update red hat security fix important out-of-bounds qemu-kvm-rhev

Relevant Releases Architectures

Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 - x86_64

Bugs Fixed

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

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