(RHSA-2021:0308) Important: OpenShift Container Platform 4.6.16 security and bug fix update

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 4.6.16. See the following advisory for the RPM packages for this
release:

https://access.redhat.com/errata/RHBA-2021:0309

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/4.6/release_notes/ocp-4-6-release-notes.html

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:4.6.16-x86_64

The image digest is sha256:3e855ad88f46ad1b7f56c312f078ca6adaba623c5d4b360143f9f82d2f349741

(For s390x architecture)

$ oc adm release info
quay.io/openshift-release-dev/ocp-release:4.6.16-s390x

The image digest is sha256:2335685cda334ecf9e12c056b148c483fb81412fbfc96c885dc669d775e1f1ee

(For ppc64le architecture)

$ oc adm release info
quay.io/openshift-release-dev/ocp-release:4.6.16-ppc64le

The image digest is sha256:953ccacf79467b3e8ebfb8def92013f1574d75e24b3ea9a455aa8931f7f17b88

All OpenShift Container Platform 4.6 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 Console
or the CLI oc command. Instructions for upgrading a cluster are available
at
https://docs.openshift.com/container-platform/4.6/updating/updating-cluster-between-minor.html#understanding-upgrade-channels_updating-cluster-between-minor.

Security Fix(es):

• SSL/TLS: Birthday attack against 64-bit block ciphers (SWEET32) (CVE-2016-2183)

• openshift/builder: privilege escalation during container image builds via mounted secrets (CVE-2021-3344)

• openshift/installer: Bootstrap nodes allow anonymous authentication on kubelet port 10250 (CVE-2021-20198)

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.