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RedHat: RHSA-2020-5118-01 Moderate: OpenShift 4.5.20 DoS Bug Fix

red hat
Calendar Grey November 24, 2020
Dist Redhat Esm H88
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ====================================================
Red Hat OpenShift Container Platform release 4.5.20 is now available with updates to packages and images that fix several bugs

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.redhat.com/en/documentation/openshift_container_platform/4.5/html/release_notes/ocp-4-5-release-notes

Details on how to access this content are available at - -cli.html.

Summary

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.redhat.com/en/documentation/openshift_container_platform/4.5/html/release_notes/ocp-4-5-release-notes
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 - -between-minor.html#understanding-upgrade-channels_updating-cluster-between - -minor.

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

Package List


Advisory ID: RHSA-2020:5118-01
Product: Red Hat OpenShift Enterprise
Issue date: 2020-11-24

Topic

Red Hat OpenShift Container Platform release 4.5.20 is now available withupdates to packages and images that fix several bugs.This release includes a security update for golang for Red Hat OpenShiftContainer Platform 4.5.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Relevant Releases Architectures

Bugs Fixed

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 users1892585 - [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

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