RHBA-2021:0424 - Bug Fix Advisory

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
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
https://docs.openshift.com/container-platform/4.6/updating/updating-cluster-cli.html.

Affected Products

• Red Hat OpenShift Container Platform 4.6 for RHEL 8 x86_64
• Red Hat OpenShift Container Platform for Power 4.6 for RHEL 8 ppc64le
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.6 for RHEL 8 s390x

Fixes

• BZ - 1891725 - oauth-proxy crashes on invalid usage
• BZ - 1900241 - [4.6] Skip "subPath should be able to unmount" NFS test
• BZ - 1905990 - RHV IPI Install master node takes VIP ip address
• BZ - 1918178 - Explicitly set minimum versions of python libraries
• BZ - 1918619 - Updating ose-jenkins-agent-maven builder & base images to be consistent with ART
• BZ - 1918628 - Updating ose-jenkins-agent-nodejs-10 builder & base images to be consistent with ART
• BZ - 1918630 - Updating ose-jenkins-agent-maven builder & base images to be consistent with ART
• BZ - 1918632 - Updating ose-jenkins-agent-nodejs-12 builder & base images to be consistent with ART
• BZ - 1918637 - Updating openshift-jenkins-2 builder & base images to be consistent with ART #1197
• BZ - 1919069 - [sig-api-machinery][Feature:APIServer][Late] kubelet terminates kube-apiserver gracefully
• BZ - 1919966 - release-4.6: Undiagnosed panic detected in pod runtime.go:76: invalid memory address or nil pointer dereference
• BZ - 1920482 - [OVN] It takes about 5 minutes for EgressIP failover to work
• BZ - 1921274 - fix MCS blocking iptables rules
• BZ - 1921901 - MutatingWebhookConfiguration pod-identity-webhook does not exclude critical control-plane components
• BZ - 1922139 - [RFE] Update jenkins-maven-agen to maven36
• BZ - 1922919 - catalog operator causing CPU spikes and bad etcd performance
• BZ - 1924085 - backend tests incorrectly hard-code artifacts dir
• BZ - 1924136 - Increase initialDelaySeconds for ovs-daemons container in the ovs-node daemonset for upgrade scenarios
• BZ - 1924257 - controllers continuously busy reconciling operator
• BZ - 1924744 - "verify /run filesystem contents do not have unexpected content using a simple Docker Strategy Build" test fails on OKD

CVEs

• CVE-2020-1945
• CVE-2020-11979
• CVE-2021-21602
• CVE-2021-21603
• CVE-2021-21604
• CVE-2021-21605
• CVE-2021-21606
• CVE-2021-21607
• CVE-2021-21608
• CVE-2021-21609
• CVE-2021-21610
• CVE-2021-21611
• CVE-2021-21615

References

(none)