Issued:
2021-10-20
Updated:
2021-10-20

RHSA-2021:3943 - Moderate: RHV-H security update redhat-virtualization-host - 4.3.19

Synopsis

Moderate: RHV-H security update (redhat-virtualization-host) 4.3.19

Type/Severity

Security Advisory Moderate

Topic

An update for redhat-release-virtualization-host and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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 redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.

Security Fix(es):

  • kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

  • Red Hat Virtualization Host has been rebased on Red Hat Enterprise Linux 7.9 Batch #9. (BZ#2010171)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/2974891

Affected Products

ProductVersionArch
Red Hat Virtualization4x86_64
Red Hat Virtualization Host4x86_64

Updated Packages

  • redhat-release-virtualization-host-4.3.19-1.el7ev.x86_64.rpm
  • redhat-release-virtualization-host-4.3.19-1.el7ev.src.rpm
  • redhat-virtualization-host-4.3.19-20211013.0.el7_9.src.rpm
  • redhat-virtualization-host-image-update-4.3.19-20211013.0.el7_9.noarch.rpm
  • redhat-virtualization-host-image-update-placeholder-4.3.19-1.el7ev.noarch.rpm

Fixes

CVEs

References

Additional information