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

Synopsis:          Moderate: OpenShift Container Platform 4.5.20 bug fix and golang security update
Advisory ID:       RHSA-2020:5118-01
Product:           Red Hat OpenShift Enterprise
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:5118
Issue date:        2020-11-24
CVE Names:         CVE-2019-20811 CVE-2019-20907 CVE-2020-8177
                   CVE-2020-8622 CVE-2020-8623 CVE-2020-8624
                   CVE-2020-14331 CVE-2020-14363 CVE-2020-14422
                   CVE-2020-15586 CVE-2020-15999 CVE-2020-16845
                   CVE-2020-25637
====================================================================
1. Summary:

Red Hat OpenShift Container Platform release 4.5.20 is now available with
updates to packages and images that fix several bugs.

This release includes a security update for golang for Red Hat OpenShift
Container Platform 4.5.

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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.

Security Fix(es):

* golang: Data race in certain net/http servers including ReverseProxy can
lead to DoS (CVE-2020-15586)
* golang: ReadUvarint and ReadVarint can read an unlimited number of bytes
from invalid inputs (CVE-2020-16845)

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.

This advisory contains the container images for Red Hat OpenShift Container
Platform 4.5.20. See the following advisory for the RPM packages for this
release:

https://access.redhat.com/errata/RHSA-2020:5119

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

This update fixes the following bug among others:

* Previously, the Prometheus swagger definition contained a `$ref` property
which could not be resolved. This caused a runtime error to occur when
using the Prometheus operand creation form. This was fixed by adding a
`definitions` property to schema returned by the `definitionFor` helper
function so that the `$ref` property can resolve. There are no longer
runtime errors when using the Prometheus operand creation form.
(BZ#1885228)

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:4.5.20-x86_64

The image digest is
sha256:78b878986d2d0af6037d637aa63e7b6f80fc8f17d0f0d5b077ac6aca83f792a0

(For s390x architecture)

  $ oc adm release info
quay.io/openshift-release-dev/ocp-release:4.5.20-s390x

The image digest is
sha256:372d9aea634d36704d8500a2f940edb3867bfde14c0e5aa19534ea5ac90083d4

(For ppc64le architecture)

  $ oc adm release info
quay.io/openshift-release-dev/ocp-release:4.5.20-ppc64le

The image digest is
sha256:030d8323cce90de6bc7ad4119ebb7f000bde06e742f6923faf76707ffe85634a

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.

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/):

1856953 - CVE-2020-15586 golang: data race in certain net/http servers including ReverseProxy can lead to DoS
1867099 - CVE-2020-16845 golang: ReadUvarint and ReadVarint can read an unlimited number of bytes from invalid inputs
1883268 - remove erroneously specified label drop rules
1885228 - Create Instance of Prometheus from operator returns blank page for non cluster-admin users
1892585 - [release 4.5] cluster-monitoring-operator: Fix bug in reflector not recovering from "Too large resource version"
1893202 - e2e-operator flakes with "TestMetricsAccessible: prometheus returned unexpected results: timed out waiting for the condition"
1893742 - move e2e test off of nfs image from docker.io/gmontero/nfs-server:latest
1894763 - Undiagnosed panic detected in pod
1894782 - OperatorHub generates incorrect RBAC
1895057 - Deleted netnamespace could not be re-created
1896990 - Console shows wrong value for maxUnavailable and maxSurge when set to 0

5. References:

https://access.redhat.com/security/cve/CVE-2019-20811
https://access.redhat.com/security/cve/CVE-2019-20907
https://access.redhat.com/security/cve/CVE-2020-8177
https://access.redhat.com/security/cve/CVE-2020-8622
https://access.redhat.com/security/cve/CVE-2020-8623
https://access.redhat.com/security/cve/CVE-2020-8624
https://access.redhat.com/security/cve/CVE-2020-14331
https://access.redhat.com/security/cve/CVE-2020-14363
https://access.redhat.com/security/cve/CVE-2020-14422
https://access.redhat.com/security/cve/CVE-2020-15586
https://access.redhat.com/security/cve/CVE-2020-15999
https://access.redhat.com/security/cve/CVE-2020-16845
https://access.redhat.com/security/cve/CVE-2020-25637
https://access.redhat.com/security/updates/classification/#moderate

6. Contact:

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

Copyright 2020 Red Hat, Inc.
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