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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: OpenShift Container Platform 4.12.22 bug fix and security update
Advisory ID:       RHSA-2023:3615-01
Product:           Red Hat OpenShift Enterprise
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:3615
Issue date:        2023-06-22
CVE Names:         CVE-2021-4235 CVE-2022-4304 CVE-2022-4450 
                   CVE-2023-0215 CVE-2023-0361 
=====================================================================

1. Summary:

Red Hat OpenShift Container Platform release 4.12.22 is now available with
updates to packages and images that fix several bugs and add enhancements.

This release includes a security update for Red Hat OpenShift Container
Platform 4.12.

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

This advisory contains the container images for Red Hat OpenShift Container
Platform 4.12.22. See the following advisory for the RPM packages for this
release:

https://access.redhat.com/errata/RHSA-2023:3613

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/4.12/release_notes/ocp-4-12-release-notes.html

Security Fix(es):

* go-yaml: Denial of Service in go-yaml (CVE-2021-4235)

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.

All OpenShift Container Platform 4.12 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/4.12/updating/updating-cluster-cli.html

3. Solution:

For OpenShift Container Platform 4.12 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/4.12/release_notes/ocp-4-12-release-notes.html

You may download the oc tool and use it to inspect release image metadata
for x86_64, s390x, ppc64le, and aarch64 architectures. The image digests
may 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:ba7956f5c2aae61c8ff3ab1ab2ee7e625db9b1c8964a65339764db79c148e4e6

(For s390x architecture)
The image digest is
sha256:36d8c9581c255ea3fb48ee8e3b4acb2e4b408f1c3542b16c55c0637403ef29e7

(For ppc64le architecture)
The image digest is
sha256:1a3f611d665c1d2b2ddb54d4f54e64c181e59fb57ec97c0578cad42c436a9bbc

(For aarch64 architecture)
The image digest is
sha256:36fe7b5c69297210f8bc0303a58c019fdc4ca578d0c3340b1bc847c47e87d333

All OpenShift Container Platform 4.12 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/4.12/updating/updating-cluster-cli.html.

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

2156727 - CVE-2021-4235 go-yaml: Denial of Service in go-yaml

5. JIRA issues fixed (https://issues.redhat.com/):

OCPBUGS-13785 - EgressNetworkPolicy DNS resolution does not fall back to TCP for truncated responses
OCPBUGS-14333 - Package openvswitch2.17 conflicts with openvswitch2.15 during the 4.12 to 4.13 upgrade of RHEL worker
OCPBUGS-14454 - CRL configmap is limited by 1MB max, not allowing for multiple public CRLS. (4.12)
OCPBUGS-14455 - mtls CRL not working when using an intermediate CA (4.12)
OCPBUGS-14647 - Errors when running must-gather for 4.12 Rosa/Hypershift cluster 
OCPBUGS-14671 - It must be possible to append a piece of FRR configuration to what MetalLB renders
OCPBUGS-14717 - Maximum Number Of Egress IPs Supported
OCPBUGS-14745 - container_network* metrics stop reporting after container restart
OCPBUGS-8673 - [whereabouts-cni] [release-4.12] Backport DualStack and the new reconciler to whereabouts plugin 4.12

6. References:

https://access.redhat.com/security/cve/CVE-2021-4235
https://access.redhat.com/security/cve/CVE-2022-4304
https://access.redhat.com/security/cve/CVE-2022-4450
https://access.redhat.com/security/cve/CVE-2023-0215
https://access.redhat.com/security/cve/CVE-2023-0361
https://access.redhat.com/security/updates/classification/#moderate
https://docs.openshift.com/container-platform/4.12/release_notes/ocp-4-12-release-notes.html

7. Contact:

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

Copyright 2023 Red Hat, Inc.
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