Skip to navigation Skip to main content

Utilities

  • Subscriptions
  • Downloads
  • Containers
  • Support Cases
Red Hat Customer Portal
  • Subscriptions
  • Downloads
  • Containers
  • Support Cases
  • Products & Services

    Products

    Support

    • Production Support
    • Development Support
    • Product Life Cycles

    Services

    • Consulting
    • Technical Account Management
    • Training & Certifications

    Documentation

    • Red Hat Enterprise Linux
    • Red Hat JBoss Enterprise Application Platform
    • Red Hat OpenStack Platform
    • Red Hat OpenShift Container Platform
    All Documentation

    Ecosystem Catalog

    • Red Hat Partner Ecosystem
    • Partner Resources
  • Tools

    Tools

    • Troubleshoot a product issue
    • Packages
    • Errata

    Customer Portal Labs

    • Configuration
    • Deployment
    • Security
    • Troubleshoot
    All labs

    Red Hat Insights

    Increase visibility into IT operations to detect and resolve technical issues before they impact your business.

    Learn More
    Go to Insights
  • Security

    Red Hat Product Security Center

    Engage with our Red Hat Product Security team, access security updates, and ensure your environments are not exposed to any known security vulnerabilities.

    Product Security Center

    Security Updates

    • Security Advisories
    • Red Hat CVE Database
    • Security Labs

    Keep your systems secure with Red Hat's specialized responses to security vulnerabilities.

    View Responses

    Resources

    • Security Blog
    • Security Measurement
    • Severity Ratings
    • Backporting Policies
    • Product Signing (GPG) Keys
  • Community

    Customer Portal Community

    • Discussions
    • Private Groups
    Community Activity

    Customer Events

    • Red Hat Convergence
    • Red Hat Summit

    Stories

    • Red Hat Subscription Value
    • You Asked. We Acted.
    • Open Source Communities
Or troubleshoot an issue.

Select Your Language

  • English
  • Français
  • 한국어
  • 日本語
  • 中文 (中国)

Infrastructure and Management

  • Red Hat Enterprise Linux
  • Red Hat Satellite
  • Red Hat Subscription Management
  • Red Hat Insights
  • Red Hat Ansible Automation Platform

Cloud Computing

  • Red Hat OpenShift
  • Red Hat OpenStack Platform
  • Red Hat OpenShift Container Platform
  • Red Hat OpenShift Data Science
  • Red Hat OpenShift Dedicated
  • Red Hat Advanced Cluster Security for Kubernetes
  • Red Hat Advanced Cluster Management for Kubernetes
  • Red Hat Quay
  • OpenShift Dev Spaces
  • Red Hat OpenShift Service on AWS

Storage

  • Red Hat Gluster Storage
  • Red Hat Hyperconverged Infrastructure
  • Red Hat Ceph Storage
  • Red Hat OpenShift Data Foundation

Runtimes

  • Red Hat Runtimes
  • Red Hat JBoss Enterprise Application Platform
  • Red Hat Data Grid
  • Red Hat JBoss Web Server
  • Red Hat Single Sign On
  • Red Hat support for Spring Boot
  • Red Hat build of Node.js
  • Red Hat build of Quarkus

Integration and Automation

  • Red Hat Application Foundations
  • Red Hat Fuse
  • Red Hat AMQ
  • Red Hat 3scale API Management
All Products
Red Hat Product Errata RHSA-2017:0350 - Security Advisory
Issued:
2017-03-01
Updated:
2017-03-01

RHSA-2017:0350 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: qemu-kvm-rhev security and bug fix update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for qemu-kvm-rhev is now available for RHEV 3.X Hypervisor and Agents for RHEL-7 and RHEV 4.X RHEV-H and Agents for RHEL-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.

Description

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.

Security Fix(es):

  • Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt copy in backward mode. A privileged user inside a guest could use this flaw to crash the QEMU process resulting in DoS or potentially execute arbitrary code on the host with privileges of QEMU process on the host. (CVE-2017-2615)
  • Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process. (CVE-2017-2620)
  • An out-of-bounds read-access flaw was found in the QEMU emulator built with IP checksum routines. The flaw could occur when computing a TCP/UDP packet's checksum, because a QEMU function used the packet's payload length without checking against the data buffer's size. A user inside a guest could use this flaw to crash the QEMU process (denial of service). (CVE-2016-2857)

Red Hat would like to thank Wjjzhang (Tencent.com Inc.) and Li Qiang (360.cn Inc.) for reporting CVE-2017-2615 and Ling Liu (Qihoo 360 Inc.) for reporting CVE-2016-2857.

Bug Fix(es):

  • Prior to this update, after migrating a guest virtual machine on the little-endian variant of IBM Power Systems and resetting the guest, the guest boot process failed with a "tcmalloc: large alloc" error message. This update fixes the bug, and the described problem no longer occurs. (BZ#1420456)
  • The qemu-kvm-rhev package depends on the usbredir and libcacard packages. However, on the little-endian variant of IBM Power Systems, smartcard use is not supported and usbredir and libcacard are thus only available in the Optional channel. As a consequence, qemu-kvm-rhev was previously not installable on these systems if the Optional channel was not available for the user. This update removes usbredir and libcacard as dependencies of qemu-kvm-rhev on little-endian IBM Power Systems, and qemu-kvm-rhev can now be installed as expected in the described scenario. (BZ#1420428)

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.

Affected Products

  • Red Hat Virtualization 4 for RHEL 7 x86_64
  • Red Hat Virtualization 3 for RHEL 7 x86_64
  • Red Hat Virtualization for IBM Power LE 4 for RHEL 7 ppc64le
  • Red Hat Virtualization for IBM Power LE 3 ppc64le

Fixes

  • BZ - 1296567 - CVE-2016-2857 Qemu: net: out of bounds read in net_checksum_calculate()
  • BZ - 1418200 - CVE-2017-2615 Qemu: display: cirrus: oob access while doing bitblt copy backward mode
  • BZ - 1420428 - Remove dependencies required by spice on ppc64le
  • BZ - 1420456 - [ppc64le]reset vm when do migration, HMP in src host promp "tcmalloc: large alloc 1073872896 bytes..."
  • BZ - 1420484 - CVE-2017-2620 Qemu: display: cirrus: potential arbitrary code execution via cirrus_bitblt_cputovideo

CVEs

  • CVE-2016-2857
  • CVE-2017-2615
  • CVE-2017-2620

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Virtualization 4 for RHEL 7

SRPM
qemu-kvm-rhev-2.6.0-28.el7_3.6.src.rpm SHA-256: 8fa1c5d4f5cb2d6195a7df93e917efadb5696e8032b5cd7ebdade993ca640d12
x86_64
qemu-img-rhev-2.6.0-28.el7_3.6.x86_64.rpm SHA-256: 8d48714c227dd1f8f21055f6a325f054166d16ca8590d4e87ee44672975ec5ec
qemu-kvm-common-rhev-2.6.0-28.el7_3.6.x86_64.rpm SHA-256: 9b8e93e436862bab8b4493df06bf8162146435e04fe56bc52e2baafb7876c750
qemu-kvm-rhev-2.6.0-28.el7_3.6.x86_64.rpm SHA-256: 8fbbb6f7c2da1bca7b63bb35f7bed7549ddfe5e86bc61421588f0f8e471b9359
qemu-kvm-rhev-debuginfo-2.6.0-28.el7_3.6.x86_64.rpm SHA-256: 02ae2c065b8a4fd3fcbb0b9db1d90be61b3a56fb29b788082723c74e8ee854a9
qemu-kvm-tools-rhev-2.6.0-28.el7_3.6.x86_64.rpm SHA-256: 4eda31539e4e241bf5d26272d7b093556cb35b9bd4cbf5614da09690f27be2d1

Red Hat Virtualization 3 for RHEL 7

SRPM
qemu-kvm-rhev-2.6.0-28.el7_3.6.src.rpm SHA-256: 8fa1c5d4f5cb2d6195a7df93e917efadb5696e8032b5cd7ebdade993ca640d12
x86_64
qemu-img-rhev-2.6.0-28.el7_3.6.x86_64.rpm SHA-256: 8d48714c227dd1f8f21055f6a325f054166d16ca8590d4e87ee44672975ec5ec
qemu-kvm-common-rhev-2.6.0-28.el7_3.6.x86_64.rpm SHA-256: 9b8e93e436862bab8b4493df06bf8162146435e04fe56bc52e2baafb7876c750
qemu-kvm-rhev-2.6.0-28.el7_3.6.x86_64.rpm SHA-256: 8fbbb6f7c2da1bca7b63bb35f7bed7549ddfe5e86bc61421588f0f8e471b9359
qemu-kvm-rhev-debuginfo-2.6.0-28.el7_3.6.x86_64.rpm SHA-256: 02ae2c065b8a4fd3fcbb0b9db1d90be61b3a56fb29b788082723c74e8ee854a9
qemu-kvm-tools-rhev-2.6.0-28.el7_3.6.x86_64.rpm SHA-256: 4eda31539e4e241bf5d26272d7b093556cb35b9bd4cbf5614da09690f27be2d1

Red Hat Virtualization for IBM Power LE 4 for RHEL 7

SRPM
qemu-kvm-rhev-2.6.0-28.el7_3.6.src.rpm SHA-256: 8fa1c5d4f5cb2d6195a7df93e917efadb5696e8032b5cd7ebdade993ca640d12
ppc64le
qemu-img-rhev-2.6.0-28.el7_3.6.ppc64le.rpm SHA-256: 40f0574542c699bd2d40698e7b35cf246798be62c2a7339e48b0ccfb1d7bef1d
qemu-kvm-common-rhev-2.6.0-28.el7_3.6.ppc64le.rpm SHA-256: 1d5cd4f121b038127e3a67f40b29d55d75739358b9b3e738b1349a270b92accd
qemu-kvm-rhev-2.6.0-28.el7_3.6.ppc64le.rpm SHA-256: 0cec8216c77c43e6bf2b054e96aec1f13ac300feac1bf38b1fb5fef6135af76f
qemu-kvm-rhev-debuginfo-2.6.0-28.el7_3.6.ppc64le.rpm SHA-256: aa35e1fb48ada6695a42853d059d70e2fb5f2f0b1d11bc1dddc0cd15917737a2
qemu-kvm-tools-rhev-2.6.0-28.el7_3.6.ppc64le.rpm SHA-256: bf5dee71b0422713b31c536ca24e2e1af37d8da76e089f4c1af70dcabf29ef82

Red Hat Virtualization for IBM Power LE 3

SRPM
qemu-kvm-rhev-2.6.0-28.el7_3.6.src.rpm SHA-256: 8fa1c5d4f5cb2d6195a7df93e917efadb5696e8032b5cd7ebdade993ca640d12
ppc64le
qemu-img-rhev-2.6.0-28.el7_3.6.ppc64le.rpm SHA-256: 40f0574542c699bd2d40698e7b35cf246798be62c2a7339e48b0ccfb1d7bef1d
qemu-kvm-common-rhev-2.6.0-28.el7_3.6.ppc64le.rpm SHA-256: 1d5cd4f121b038127e3a67f40b29d55d75739358b9b3e738b1349a270b92accd
qemu-kvm-rhev-2.6.0-28.el7_3.6.ppc64le.rpm SHA-256: 0cec8216c77c43e6bf2b054e96aec1f13ac300feac1bf38b1fb5fef6135af76f
qemu-kvm-rhev-debuginfo-2.6.0-28.el7_3.6.ppc64le.rpm SHA-256: aa35e1fb48ada6695a42853d059d70e2fb5f2f0b1d11bc1dddc0cd15917737a2
qemu-kvm-tools-rhev-2.6.0-28.el7_3.6.ppc64le.rpm SHA-256: bf5dee71b0422713b31c536ca24e2e1af37d8da76e089f4c1af70dcabf29ef82

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

Red Hat

Quick Links

  • Downloads
  • Subscriptions
  • Support Cases
  • Customer Service
  • Product Documentation

Help

  • Contact Us
  • Customer Portal FAQ
  • Log-in Assistance

Site Info

  • Trust Red Hat
  • Browser Support Policy
  • Accessibility
  • Awards and Recognition
  • Colophon

Related Sites

  • redhat.com
  • developers.redhat.com
  • connect.redhat.com
  • cloud.redhat.com

About

  • Red Hat Subscription Value
  • About Red Hat
  • Red Hat Jobs
2023
  • Privacy Statement
  • Terms of Use
  • All Policies and Guidelines
We've updated our Privacy Statement effective September 15, 2023.
Red Hat Summit Red Hat Summit
Twitter