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AUSCERT External Security Bulletin Redistribution
ESB-2021.0446
OpenShift Container Platform 4.5.31 bug fix and security update
10 February 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: OpenShift Container Platform 4.5.31
Publisher: Red Hat
Operating System: Red Hat
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-20198 CVE-2020-14382
Reference: ESB-2021.0438
ESB-2021.0437
Original Bulletin:
https://access.redhat.com/errata/RHSA-2021:0313
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Red Hat Security Advisory
Synopsis: Important: OpenShift Container Platform 4.5.31 bug fix and security update
Advisory ID: RHSA-2021:0313-01
Product: Red Hat OpenShift Enterprise
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0313
Issue date: 2021-02-09
CVE Names: CVE-2020-14382 CVE-2021-20198
=====================================================================
1. Summary:
Red Hat OpenShift Container Platform release 4.5.31 is now available with
updates to packages and images that fix several bugs.
This release also includes a security update for Red Hat OpenShift
Container Platform 4.5.
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 designed for on-premise or private
cloud deployments.
This advisory contains the container images for Red Hat OpenShift Container
Platform 4.5.31. See the following advisory for the RPM packages for this
release:
https://access.redhat.com/errata/RHBA-2021:0314
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/4.5/release_notes/ocp-4-5-rel
ease-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:4.5.31-x86_64
The image digest is
sha256:27951dd757d472bf913daaffa548b865e87968831ca6f42c1f6946f7dcf0564e
(For s390x architecture)
$ oc adm release info
quay.io/openshift-release-dev/ocp-release:4.5.31-s390x
The image digest is
sha256:4ee2c785e4a3b1cb0716e84d649a1489d7a72f6735ffd7a3a933218609cb58ec
(For ppc64le architecture)
$ oc adm release info
quay.io/openshift-release-dev/ocp-release:4.5.31-ppc64le
The image digest is
sha256:8469f7f1f98d595f503c7ebc1df2f3c2755012441d4d21684914db45193a55ef
All OpenShift Container Platform 4.5 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/4.5/updating/updating-cluster
- - -between-minor.html#understanding-upgrade-channels_updating-cluster-between
- - -minor.
Security Fix(es):
* 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.
3. Solution:
For OpenShift Container Platform 4.5 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/4.5/release_notes/ocp-4-5-rel
ease-notes.html
Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.5/updating/updating-cluster
- - -cli.html.
4. Bugs fixed (https://bugzilla.redhat.com/):
1880333 - [release 4.5] machine-config-operator: Fix bug in reflector not recovering from "Too large resource version"
1882694 - [4.5] PIN OVS version for OVN-Kubernetes
1895202 - Helm chart fails to install using developer console because of TLS certificate error
1905106 - (release-4.5) Collect spec config for clusteroperator resources
1919848 - Placeholder bug for OCP 4.5.z rpm release
1920764 - CVE-2021-20198 openshift/installer: Bootstrap nodes allow anonymous authentication on kubelet port 10250
1921252 - with sharded ingresscontrollers, all shards reload when any endpoint changes
5. References:
https://access.redhat.com/security/cve/CVE-2020-14382
https://access.redhat.com/security/cve/CVE-2021-20198
https://access.redhat.com/security/updates/classification/#important
6. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
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