RHSA-2019:2889: Important: redhat-virtualization-host security update
First published: Tue Sep 24 2019(Updated: )
The redhat-virtualization-host packages provide the Red Hat 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. <br>The following packages have been upgraded to a later upstream version: redhat-release-virtualization-host (4.3.5), redhat-virtualization-host (4.3.5). (BZ#1751436, BZ#1754063)<br>Security Fix(es):<br><li> A buffer overflow flaw was found in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host. (CVE-2019-14835)</li> For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/redhat-release-virtualization-host | <4.3.5-4.el7e | 4.3.5-4.el7e |
| redhat/redhat-virtualization-host | <4.3.5-20190920.0.el7_7 | 4.3.5-20190920.0.el7_7 |
| redhat/redhat-virtualization-host-image-update | <4.3.5-20190920.0.el7_7 | 4.3.5-20190920.0.el7_7 |
| redhat/redhat-virtualization-host-image-update-placeholder | <4.3.5-4.el7e | 4.3.5-4.el7e |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2019:2889?
The severity of RHSA-2019:2889 is rated as important.
How do I fix RHSA-2019:2889?
To fix RHSA-2019:2889, update the affected packages to the specified remedial versions using your package manager.
Which packages are affected by RHSA-2019:2889?
The affected packages in RHSA-2019:2889 include redhat-release-virtualization-host and redhat-virtualization-host, among others.
What systems are impacted by RHSA-2019:2889?
RHSA-2019:2889 impacts systems running Red Hat Enterprise Linux with the virtualization host packages.
Is there a workaround for RHSA-2019:2889?
There are no specific workarounds for RHSA-2019:2889; upgrading to the latest packages is recommended.
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