An OpenShift Container Platform 4.11.27 security update has been released.

RHSA-2023:0651-01: Important: OpenShift Container Platform 4.11.27 security update

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Red Hat Security Advisory

Synopsis: Important: OpenShift Container Platform 4.11.27 security update
Advisory ID: RHSA-2023:0651-01
Product: Red Hat OpenShift Enterprise
Advisory URL:   https://access.redhat.com/errata/RHSA-2023:0651
Issue date: 2023-02-15
CVE Names: CVE-2021-4238 CVE-2022-47629
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1. Summary:

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.

2. 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)

3. 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

4. Bugs fixed (  https://bugzilla.redhat.com/):

2048600 - Networking Day 1 - Bootstrap Doesn't Get External IP when no DHCP Server
2156729 - CVE-2021-4238 goutils: RandomAlphaNumeric and CryptoRandomAlphaNumeric are not as random as they should be

5. JIRA issues fixed (  https://issues.jboss.org/):

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]

6. References:

  https://access.redhat.com/security/cve/CVE-2021-4238
  https://access.redhat.com/security/cve/CVE-2022-47629
  https://access.redhat.com/security/updates/classification/#important

7. Contact:

The Red Hat security contact is . More contact
details at   https://access.redhat.com/security/team/contact/

Copyright 2023 Red Hat, Inc.