Red Hat OpenShift 4.7.28 RHSA-2021-3262-01 Important: DoS Issues

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 container images for Red Hat OpenShift Container Platform 4.7.28. See the following advisory for the RPM packages for this release:
https://access.redhat.com/errata/RHBA-2021:3263
Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation for details about these changes:
https://docs.redhat.com/en/documentation/openshift_container_platform/4.7/html/release_notes/ocp-4-7-release-notes
Security Fix(es):
* gogo/protobuf: plugin/unmarshal/unmarshal.go lacks certain index validation (CVE-2021-3121)
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.
Bug Fix(es):
* Machine Config Operator degrades during cluster update with failed to convert Ignition config spec v2 to v3 (BZ#1956462)
* OCP IPI Publish Internal - GCP: Load Balancer service with External Traffic Policy as Local is not working (BZ#1971669)
* [4.7] Unable to attach Vsphere volume shows the error "failed to get canonical path" (BZ#1973766)
* oc logs doesn't work with piepeline builds (BZ#1974264)
* "provisioned registration errors" cannot be reported (BZ#1976924)
* AWS Elastic IP permissions are incorrectly required (BZ#1981553)
* Memory consumption (container_memory_rss) steadily growing for /system.slice/kubelet.service when FIPS enabled [ocp 4.7] (BZ#1981580)
* Problematic Deployment creates infinite number Replicasets causing etcd to reach quota limit (BZ#1981775)
* Size of the hostname was preventing proper DNS resolution of the worker node names (BZ#1983695)
* (release-4.7) Insights status card shows nothing when 0 issues found (BZ#1986724)
* drop-icmp pod blocks direct SSH access to cluster nodes (BZ#1988426)
* Editing a Deployment drops annotations (BZ#1989642)
* [Kuryr][4.7] Duplicated egress rule for service network in knp object (BZ#1990175)
* Update failed - ovn-nbctl: duplicate nexthop for the same ECMP route (BZ#1991445)
* Unable to install a zVM hosted OCP 4.7.24 on Z Cluster based on new RHCOS 47 RHEL 8.4 based build (BZ#1992240)
* alerts: SystemMemoryExceedsReservation triggers too quickly (BZ#1992687)
* failed to start cri-o service due to /usr/libexec/crio/conmon is missing (BZ#1993386)
* Thanos build failure: vendor/ ignored (BZ#1994123)
* Ipv6 IP addresses are not accepted for whitelisting (BZ#1994645)
* upgrade from 4.6 to 4.7 to 4.8 with mcp worker "paused=true", crio report "panic: close of closed channel" which lead to a master Node go into Restart loop (BZ#1994729)
* linuxptp-daemon crash on 4.8 (BZ#1995579)
* long living clusters may fail to upgrade because of an invalid conmon path (BZ#1995810)
For more details about the security issue(s), refer to the CVE page(s) listed in the References section.
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:4.7.28-x86_64
The image digest is sha256:b3f38d58057a12b0477bf28971390db3e3391ce1af8ac06e35d0aa9e8d8e5966
(For s390x architecture)
$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.7.28-s390x
The image digest is sha256:30c2011f6d84b16960b981a07558f96a55e59a281449d25c5ccc778aaeb2f970
(For ppc64le architecture)
$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.7.28-ppc64le
The image digest is sha256:52ebf0db5a36434357c24a64863025730d2159a94997333f15fbe1444fa88f4f
Instructions for upgrading a cluster are available at - -between-minor.html#understanding-upgrade-channels_updating-cluster-between - -minor