RHSA-2021:3943: Moderate: RHV-H security update (redhat-virtualization-host) 4.3.19
The redhat-virtualization-host packages provide the Red Hat Virtualization Host.<br>These packages include redhat-release-virtualization-host. Red Hat<br>Virtualization Hosts (RHVH) are installed using a special build of Red Hat<br>Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and<br>performing administrative tasks.<br>Security Fix(es):<br><li> kernel: Improper handling of VMIO|VMPFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)</li> 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.<br>Bug Fix(es):<br><li> Red Hat Virtualization Host has been rebased on Red Hat Enterprise Linux 7.9 Batch #9. (BZ#2010171)</li>
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2021:3943?
The severity of RHSA-2021:3943 is classified as moderate.
How do I fix RHSA-2021:3943?
To fix RHSA-2021:3943, update the affected packages to the latest recommended versions provided by Red Hat.
What packages are affected by RHSA-2021:3943?
The affected packages by RHSA-2021:3943 include redhat-release-virtualization-host, redhat-virtualization-host, and their associated image updates.
When was RHSA-2021:3943 released?
RHSA-2021:3943 was released on October 13, 2021.
Is there a workaround for RHSA-2021:3943?
There are no known workarounds for RHSA-2021:3943; updating the packages is the recommended action.