Important: OpenShift Container Platform 4.11.28 security update

Topic

Red Hat OpenShift Container Platform release 4.11.28 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 designed for on-premise or private
cloud deployments.

This advisory contains the container images for Red Hat OpenShift Container Platform 4.11.28. See the following advisory for the RPM packages for this release:

https://access.redhat.com/errata/RHBA-2023:0773

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/4.11/release_notes/ocp-4-11-release-notes.html

Security Fix(es):

• goutils: RandomAlphaNumeric and CryptoRandomAlphaNumeric are not as random as they should be (CVE-2021-4238)
• golang: out-of-bounds read in golang.org/x/text/language leads to DoS (CVE-2021-38561)
• golang: net/http: An attacker can cause excessive memory growth in a Go server accepting HTTP/2 requests (CVE-2022-41717)

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 4.11 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

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 sha256:85238bc3eddb88e958535597dbe8ec6f2aa88aa1713c2e1ee7faf88d1fefdac0

(For s390x architecture)
The image digest is sha256:96528500690870b001c214ed0b142b5b375494ddfd99de274285ae6eacd318bb

(For ppc64le architecture)
The image digest is sha256:0821035d379a4cab1147669bac5f42139b9839e780394e8586e29800e79789bd

(For aarch64 architecture)
The image digest is sha256:a5c6196590d47b5ca8578e35c23da47cb103947271ab5deb21c8d258de62a777

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 - 2100495 - CVE-2021-38561 golang: out-of-bounds read in golang.org/x/text/language leads to DoS
• BZ - 2156729 - CVE-2021-4238 goutils: RandomAlphaNumeric and CryptoRandomAlphaNumeric are not as random as they should be
• BZ - 2161274 - CVE-2022-41717 golang: net/http: An attacker can cause excessive memory growth in a Go server accepting HTTP/2 requests
• OCPBUGS-3942 - Whereabouts CNI timesout while iterating exclude range [backport 4.11]
• OCPBUGS-5245 - [release-4.11] OVNK: NAT issue for packets exceeding check_pkt_larger() for NodePort services that route to hostNetworked pods
• OCPBUGS-6492 - Inconsistent user expeience for creating new projects after persmissions have been revoked
• OCPBUGS-6851 - admin ack test nondeterministically does a check post-upgrade
• OCPBUGS-7010 - [release-4.11] Egress FW ACL rules are invalid in dualstack mode
• OCPBUGS-7319 - [4.11] [OVNK] Add support for service session affinity timeout
• OCPBUGS-7330 - When setting allowedRegistries urls the openshift-samples operator is degraded

CVEs

• CVE-2021-4238
• CVE-2021-38561
• CVE-2022-2879
• CVE-2022-2880
• CVE-2022-4337
• CVE-2022-4338
• CVE-2022-23521
• CVE-2022-41715
• CVE-2022-41717
• CVE-2022-41903

References

• https://access.redhat.com/security/updates/classification/#important
• https://docs.openshift.com/container-platform/4.11/release_notes/ocp-4-11-release-notes.html