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-2018:1665 - Security Advisory
Issued:
2018-05-21
Updated:
2018-05-21

RHSA-2018:1665 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: libvirt security 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 libvirt is now available for Red Hat Enterprise Linux 6.5 Advanced Update Support.

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

The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems.

Security Fix(es):

  • An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3639)

Note: This is the libvirt side of the CVE-2018-3639 mitigation.

Red Hat would like to thank Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) for reporting this issue.

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 the updated packages, libvirtd will be restarted automatically.

Affected Products

  • Red Hat Enterprise Linux Server - AUS 6.5 x86_64

Fixes

  • BZ - 1566890 - CVE-2018-3639 hw: cpu: speculative store bypass

CVEs

  • CVE-2018-3639

References

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

Red Hat Enterprise Linux Server - AUS 6.5

SRPM
libvirt-0.10.2-29.el6_5.16.src.rpm SHA-256: bcad6ca4c2ef69d92d5e1062414b46bd33a64a11becb232d345fc96954530266
x86_64
libvirt-0.10.2-29.el6_5.16.x86_64.rpm SHA-256: 8ee725daf506b882f8a45afdd93564e323717d5d8ff2baef8e1ff278bfd01ddf
libvirt-client-0.10.2-29.el6_5.16.i686.rpm SHA-256: 5537e86289a5c926483480584ab01bd1b707bf5aab9ed5a1510b8c78229747f0
libvirt-client-0.10.2-29.el6_5.16.x86_64.rpm SHA-256: 22c5b7b38ce79ec7ea4025b97d52aab2c6e4def3fd5dd98178eddecd23c78351
libvirt-debuginfo-0.10.2-29.el6_5.16.i686.rpm SHA-256: 5da502dedef0197685763e00995267dbfef8a5284f244cffc382e0d58e844d83
libvirt-debuginfo-0.10.2-29.el6_5.16.x86_64.rpm SHA-256: def7a4f3df168e1ae96dd4f0991f2851a5c3a877beb376d4fffb253fb2d9866b
libvirt-debuginfo-0.10.2-29.el6_5.16.x86_64.rpm SHA-256: def7a4f3df168e1ae96dd4f0991f2851a5c3a877beb376d4fffb253fb2d9866b
libvirt-devel-0.10.2-29.el6_5.16.i686.rpm SHA-256: d29706e5665d8b468182c5912e683bf2e0de08577c76d41e5f31a18ed502f000
libvirt-devel-0.10.2-29.el6_5.16.x86_64.rpm SHA-256: c5f373d65463ec9106c884c7e4c444d12d7ffadafc49b200ba12ff7fc6302cb6
libvirt-lock-sanlock-0.10.2-29.el6_5.16.x86_64.rpm SHA-256: 7908a3e162c9caf381ba87ab3d8efd086c60f8bdee89225f039ea0f8c1d2fe12
libvirt-python-0.10.2-29.el6_5.16.x86_64.rpm SHA-256: ced59a69446ff1e5b274b17bc3d741cc0aa98c4a02b72ee6ccad4c22108c4619

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 <a href='http://www.redhat.com/en/about/privacy-policy' class='privacy-policy'>Privacy Statement</a> effective September 15, 2023.
Red Hat Summit Red Hat Summit
Twitter