Important: OpenShift Container Platform 4.11.27 security update

Topic

Red Hat OpenShift Container Platform release 4.11.27 is now available with updates to packages and images that fix several bugs and add enhancements.

Red Hat Product Security has rated this update as having a security impact of Important. 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 esigned for on-premise or private cloud deployments.

Security Fix(es):

• goutils: RandomAlphaNumeric and CryptoRandomAlphaNumeric are not as random as they should be (CVE-2021-4238)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other elated information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• Networking Day 1 - Bootstrap Doesn't Get External IP when no DHCP Server (BZ#2048600)

Solution

For OpenShift Container Platform 4.11 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/4.11/release_notes/ocp-4-11-release-notes.html

You can download the oc tool and use it to inspect release image metadata for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests can be found at:

https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.

The sha values for the release are:

(For x86_64 architecture)
The image digest is sha256:65e71a774a18c1c191f28655ce245abeecd653e8215b75f87eb23ceadacd530d

(For s390x architecture)
The image digest is sha256:cfccfab6abf7cd74cffbc43e4ae38745f258cb28ff6360b0f433c7718d6f144b

(For ppc64le architecture)
The image digest is sha256: e13089586d2061a41250e2b546259bef0c5c4995c704d0e2220ae516a1a675da

(For aarch64 architecture)
The image digest is sha256:932754cfa58f41186a48ecff03c6345c59325fc7ff1496e91e57fa34752db142

All OpenShift Container Platform 4.11 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 CLI (oc) or web console. Instructions for upgrading a cluster are available at:
https://docs.openshift.com/container-platform/4.11/updating/updating-cluster-cli.html

Affected Products

• Red Hat OpenShift Container Platform 4.11 for RHEL 8 x86_64
• Red Hat OpenShift Container Platform for Power 4.11 for RHEL 8 ppc64le
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.11 for RHEL 8 s390x
• Red Hat OpenShift Container Platform for ARM 64 4.11 aarch64

Fixes

• BZ - 2048600 - Networking Day 1 - Bootstrap Doesn't Get External IP when no DHCP Server
• BZ - 2156729 - CVE-2021-4238 goutils: RandomAlphaNumeric and CryptoRandomAlphaNumeric are not as random as they should be
• OCPBUGS-3507 - [4.11.z] Incorrect network configuration in worker node with two interfaces
• OCPBUGS-4340 - oc get dc fails when AllRequestBodies audit-profile is set in apiserver
• OCPBUGS-5459 - Topology sidebar actions doesn't show the latest resource data
• OCPBUGS-5926 - NMstate removes egressip in OpenShift cluster with SDN plugin
• OCPBUGS-6176 - Tracker: Configure ignored namespaces into multus-admission-controller (4.11)
• OCPBUGS-6683 - [4.11]Improve Pod Admission failure for restricted-v2 denials that pass with restricted
• OCPBUGS-6837 - Add rpm-build to DTK image
• OCPBUGS-6907 - Image registry Operator does not use Proxy when connecting to openstack
• OCPBUGS-6920 - Tracker: Configure ignored namespaces into multus-admission-controller (4.11,CNO)
• OCPBUGS-7033 - 4.11 error 524 from seccomp(2) when trying to load filter [rhel-8.6.0.z]
• OCPBUGS-7034 - 4.11 [iavf] It takes long time to create multiple VF interfaces and the VF interface names are not consistent [rhel-8.6.0.z]

CVEs

• CVE-2021-4238
• CVE-2022-47629

References

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