Issued:
2021-02-17
Updated:
2021-02-17

RHBA-2021:0424 - OpenShift Container Platform 4.6.17 bug fix update

Synopsis

OpenShift Container Platform 4.6.17 bug fix update

Type/Severity

Bug Fix Advisory None

Topic

Red Hat OpenShift Container Platform release 4.6.17 is now available with updates to packages and images that fix several bugs and add enhancements.

Description

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

This advisory contains the images for Red Hat OpenShift Container Platform 4.6.17. See the following advisory for the RPM packages for this release:

httpos://access.redhat.com/errata/RHSA-2021:0423

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/4.6/release_notes/ocp-4-6-release-notes.html

This update fixes the following bugs among others:

  • Previously, an incorrect OVN-kubernetes security rule blocked certain inbound connections. While rare, some attempts to connect to a pod would fail spuriously. This update fixes the iptables to block the intended connections, which results in no spurious failures. (BZ#1921274)

  • Previously, attempts to write to a nil writer may have led to "invalid memory adress" or "nil pointer dereference". Sharing the same instance of the writer might have also led to "index out of range [43] with length 30 and recovered from err index > windowEnd" errors. This update fixes a data race in the SerializeObject function of the kube-apiserver. (BZ#1919966)

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:4.6.17-x86_64

The image digest is sha256:a7b23f38d1e5be975a6b516739689673011bdfa59a7158dc6ca36cefae169c18

(For s390x architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.6.17-s390x

The image digest is sha256:28fdb1b6bc9348525ff52ab5879c285dbb95e7cb41c4e8506daa7d868045aa9d

(For ppc64le architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.6.17-ppc64le

The image digest is sha256:e8b187a49ead2acdb38b77d70b8fc0975fd6f0dded8c90378cb42a533652baa4

All OpenShift Container Platform 4.6 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/4.6/updating/updating-cluster -between-minor.html#understanding-upgrade-channels_updating-cluster-between -minor.

Solution

For OpenShift Container Platform 4.6 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/4.6/release_notes/ocp-4-6-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/4.6/updating/updating-cluster-cli.html.

Affected Products

ProductVersionArch
Red Hat OpenShift Container Platform4.6x86_64
Red Hat OpenShift Container Platform for Power4.6ppc64le
Red Hat OpenShift Container Platform for IBM Z and LinuxONE4.6s390x

Fixes

CVEs

References

(none)

Additional information