RHSA-2018:1653: Important: libvirt security update

Published May 21, 2018
·
Updated

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.

Affected Software

62 affected componentsFixes available
redhat/libvirt<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-client<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-client<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-config-network<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-config-nwfilter<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-interface<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-lxc<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-network<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-nodedev<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-nwfilter<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-qemu<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-secret<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-storage<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-kvm<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-lxc<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-debuginfo<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-debuginfo<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-devel<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-devel<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-docs<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-lock-sanlock<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-login-shell<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-nss<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-nss<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-config-network<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-config-nwfilter<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-interface<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-lxc<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-network<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-nodedev<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-nwfilter<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-secret<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-storage<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-lxc<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-docs<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-login-shell<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-qemu<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-lock-sanlock<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-client<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-config-network<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-config-nwfilter<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-interface<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-lxc<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-network<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-nodedev<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-nwfilter<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-qemu<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-secret<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-driver-storage<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-kvm<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-daemon-lxc<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-debuginfo<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-devel<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-docs<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-lock-sanlock<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-login-shell<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12
redhat/libvirt-nss<2.0.0-10.el7_3.12
2.0.0-10.el7_3.12

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/libvirt to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  2. Upgrade

    Upgrade redhat/libvirt-client to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  3. Upgrade

    Upgrade redhat/libvirt-daemon to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  4. Upgrade

    Upgrade redhat/libvirt-daemon-config-network to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  5. Upgrade

    Upgrade redhat/libvirt-daemon-config-nwfilter to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  6. Upgrade

    Upgrade redhat/libvirt-daemon-driver-interface to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  7. Upgrade

    Upgrade redhat/libvirt-daemon-driver-lxc to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  8. Upgrade

    Upgrade redhat/libvirt-daemon-driver-network to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  9. Upgrade

    Upgrade redhat/libvirt-daemon-driver-nodedev to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  10. Upgrade

    Upgrade redhat/libvirt-daemon-driver-nwfilter to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  11. Upgrade

    Upgrade redhat/libvirt-daemon-driver-qemu to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  12. Upgrade

    Upgrade redhat/libvirt-daemon-driver-secret to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  13. Upgrade

    Upgrade redhat/libvirt-daemon-driver-storage to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  14. Upgrade

    Upgrade redhat/libvirt-daemon-kvm to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  15. Upgrade

    Upgrade redhat/libvirt-daemon-lxc to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  16. Upgrade

    Upgrade redhat/libvirt-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  17. Upgrade

    Upgrade redhat/libvirt-devel to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  18. Upgrade

    Upgrade redhat/libvirt-docs to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  19. Upgrade

    Upgrade redhat/libvirt-lock-sanlock to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  20. Upgrade

    Upgrade redhat/libvirt-login-shell to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  21. Upgrade

    Upgrade redhat/libvirt-nss to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  22. Upgrade

    Upgrade libvirt to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  23. Upgrade

    Upgrade libvirt-client to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  24. Upgrade

    Upgrade libvirt-daemon to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  25. Upgrade

    Upgrade libvirt-daemon-config-network to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  26. Upgrade

    Upgrade libvirt-daemon-config-nwfilter to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  27. Upgrade

    Upgrade libvirt-daemon-driver-interface to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  28. Upgrade

    Upgrade libvirt-daemon-driver-lxc to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  29. Upgrade

    Upgrade libvirt-daemon-driver-network to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  30. Upgrade

    Upgrade libvirt-daemon-driver-nodedev to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  31. Upgrade

    Upgrade libvirt-daemon-driver-nwfilter to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  32. Upgrade

    Upgrade libvirt-daemon-driver-qemu to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  33. Upgrade

    Upgrade libvirt-daemon-driver-secret to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  34. Upgrade

    Upgrade libvirt-daemon-driver-storage to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  35. Upgrade

    Upgrade libvirt-daemon-kvm to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  36. Upgrade

    Upgrade libvirt-daemon-lxc to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  37. Upgrade

    Upgrade libvirt-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  38. Upgrade

    Upgrade libvirt-devel to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  39. Upgrade

    Upgrade libvirt-docs to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  40. Upgrade

    Upgrade libvirt-lock-sanlock to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  41. Upgrade

    Upgrade libvirt-login-shell to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12
  42. Upgrade

    Upgrade libvirt-nss to a version that resolves this vulnerability.

    Fixed in 2.0.0-10.el7_3.12

Event History

Jul 4, 2026
Advisory Published
via Red Hat·11:08 AM
Data Sourced
via Red Hat·11:08 AM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2018:1653?

The severity of RHSA-2018:1653 is classified as important.

2

How do I fix RHSA-2018:1653?

To fix RHSA-2018:1653, you should update the libvirt packages to version 2.0.0-10.el7_3.12 or later.

3

What software is affected by RHSA-2018:1653?

RHSA-2018:1653 affects the libvirt, libvirt-client, and libvirt-daemon packages among others.

4

Is there a workaround for RHSA-2018:1653?

There are no official workarounds for the vulnerabilities fixed by RHSA-2018:1653; updating is recommended.

5

Can I continue using my system without addressing RHSA-2018:1653?

It is not advisable to continue using your system without addressing RHSA-2018:1653 as it poses security risks.

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