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Important: qemu Code Execution Vulnerability for Red Hat OpenStack 7.0

red hat
Calendar Grey May 10, 2016
Dist Redhat Esm H88
A significant security patch for qemu-kvm-rhev in Red Hat Enterprise Linux OpenStack targets severe vulnerabilities.
An update for qemu-kvm-rhev is now available for Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7

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

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:
* 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.

Topics%20covered

Topics Covered

security advisory update red hat code execution important 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 7.0 (Kilo) for RHEL 7:
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/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2016:1001-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2016:1001.html
Issue date: 2016-05-10

Topic

An update for qemu-kvm-rhev is now available for Red Hat Enterprise LinuxOpenStack Platform 7.0 (Kilo) for RHEL 7.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 code execution important qemu-kvm-rhev

Relevant Releases Architectures

Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 - x86_64

Bugs Fixed

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

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