Issued:

2020-12-01

Updated:

2020-12-01

RHSA-2020:5194 - Moderate: OpenShift Container Platform 4.5.21 bug fix and security update

Synopsis

Moderate: OpenShift Container Platform 4.5.21 bug fix and security update

Type/Severity

Security Advisory Moderate

Topic

Red Hat OpenShift Container Platform release 4.5.21 is now available with updates to packages and images that fix several bugs.

This release includes a security update for openshift-enterprise-hyperkube for Red Hat OpenShift Container Platform 4.5.21.

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

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments.

Security Fix(es):

• kubernetes: compromised node could escalate to cluster level privileges (CVE-2020-8559)

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.

This advisory contains the container images for Red Hat OpenShift Container Platform 4.5.21. See the following advisory for the RPM packages for this release:

https://access.redhat.com/errata/RHBA-2020:5193

Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes:

https://docs.openshift.com/container-platform/4.5/release_notes/ocp-4-5-release-notes.html

This update fixes the following bug among others:

• Previously, the Image Registry Operator did not generate the httpSecret when it was empty. This caused the httpSecret to not be set correctly. Now, the Operator generates the httpSecret and uses it for all replicas when the configuration file is created. (BZ#1895856)

You may download the oc tool and use it to inspect release image metadata as follows:

(For x86_64 architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.5.21-x86_64

The image digest is sha256:7684a3daa92827b313a682b3615f2a348a941f8557b5b509b736226f40e01e07

(For s390x architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.5.21-s390x

The image digest is sha256:6e73d6be6b76ac33c715b58bdcc4691469d2813282c0b34cf6918836a4b9f678

(For ppc64le architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.5.21-ppc64le

The image digest is sha256:168d64a254b218ece47554ff2fc175714d9fcbe8b45136c6d4587fef317bc962

All OpenShift Container Platform 4.5 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift Console or the CLI oc command. Instructions for upgrading a cluster are available at This page is not included, but the link has been rewritten to point to the nearest parent document.https://docs.openshift.com/container-platform/4.5/updating/updating-cluster-between-minor.html#understanding-upgrade-channels_updating-cluster-between-minor.

Solution

For OpenShift Container Platform 4.5 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:

https://docs.openshift.com/container-platform/4.5/release_notes/ocp-4-5-release-notes.html

Details on how to access this content are available at This page is not included, but the link has been rewritten to point to the nearest parent document.https://docs.openshift.com/container-platform/4.5/updating/updating-cluster-cli.html.

Affected Products

Fixes

• This content is not included.BZ - 1828858
• This content is not included.BZ - 1851422
• This content is not included.BZ - 1879017
• This content is not included.BZ - 1880341
• This content is not included.BZ - 1881542
• This content is not included.BZ - 1883412
• This content is not included.BZ - 1892372
• This content is not included.BZ - 1894267
• This content is not included.BZ - 1895856
• This content is not included.BZ - 1897313
• This content is not included.BZ - 1899563

CVEs

• CVE-2020-8559
• CVE-2020-15999

References

• https://access.redhat.com/security/updates/classification/#moderate

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.