RHSA-2021:2239: Moderate: Red Hat Virtualization Host security update [ovirt-4.4.6]

Published Jun 3, 2021
·
Updated

The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. 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.The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. 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. The ovirt-node-ng packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. 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): python-cryptography: bleichenbacher timing oracle attack against RSA decryption (CVE-2020-25659) krb5: unbounded recursion via an ASN.1-encoded Kerberos message in lib/krb5/asn.1/asn1encode.c may lead to DoS (CVE-2020-28196) python-cryptography: certain sequences of update() calls when symmetrically encrypting very large payloads could result in an integer overflow and lead to buffer overflows (CVE-2020-36242) 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.Bug Fix(es): Previously, old RPM files were not properly removed during package removal (uninistall) or upgrade. As a result, removed packages were reinstalled, or, during and upgrade, the system tried to install two or more different versions at once, causing the upgrade to fail. In this release, the dnf plugin has been fixed, and RPM packages are now properly removed.The new version will also auto-heal the broken system by removing RPM packages which are not supposed to be in the persisted-rpms directory. (BZ#1936972) With this release, ovirt-hosted-engine-ha supports multiple, comma-separated values for all iSCSI configuration items. (BZ#1909888)

Affected Software

18 affected componentsFixes available
redhat/cockpit-ovirt<0.15.0-2.el8e
0.15.0-2.el8e
redhat/imgbased<1.2.19-1.el8e
1.2.19-1.el8e
redhat/ovirt-hosted-engine-ha<2.4.7-1.el8e
2.4.7-1.el8e
redhat/redhat-release-virtualization-host<4.4.6-1.el8e
4.4.6-1.el8e
redhat/scap-security-guide<0.1.54-1.el8e
0.1.54-1.el8e
redhat/cockpit-ovirt-dashboard<0.15.0-2.el8e
0.15.0-2.el8e
redhat/python3-imgbased<1.2.19-1.el8e
1.2.19-1.el8e
redhat/redhat-virtualization-host-image-update-placeholder<4.4.6-1.el8e
4.4.6-1.el8e
redhat/scap-security-guide-rhv<0.1.54-1.el8e
0.1.54-1.el8e
redhat/redhat-virtualization-host<4.4.6-20210527.3.el8_4
4.4.6-20210527.3.el8_4
redhat/elfutils-debuginfo<0.182-3.el8
0.182-3.el8
redhat/elfutils-debuginfod-client<0.182-3.el8
0.182-3.el8
redhat/elfutils-debuginfod-client-debuginfo<0.182-3.el8
0.182-3.el8
redhat/elfutils-debuginfod-debuginfo<0.182-3.el8
0.182-3.el8
redhat/elfutils-debugsource<0.182-3.el8
0.182-3.el8
redhat/elfutils-libelf-debuginfo<0.182-3.el8
0.182-3.el8
redhat/elfutils-libs-debuginfo<0.182-3.el8
0.182-3.el8
redhat/redhat-virtualization-host-image-update<4.4.6-20210527.3.el8_4
4.4.6-20210527.3.el8_4

Remediation

Event History

Apr 21, 2026
Advisory Published
via Red Hat·02:29 PM
Data Sourced
via Red Hat·02:29 PM
RemedyDescriptionAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of RHSA-2021:2239?

The severity of RHSA-2021:2239 is classified as important.

2

How do I fix RHSA-2021:2239?

To fix RHSA-2021:2239, update affected packages to their recommended versions as specified in the advisory.

3

Which packages are affected by RHSA-2021:2239?

Affected packages for RHSA-2021:2239 include cockpit-ovirt, ovirt-hosted-engine-ha, and redhat-release-virtualization-host, among others.

4

What systems are impacted by RHSA-2021:2239?

RHSA-2021:2239 affects systems running Red Hat Virtualization Host (RHVH) packages.

5

Is there a workaround for RHSA-2021:2239?

There are no documented workarounds for RHSA-2021:2239; the recommended action is to apply the available updates.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203