RHSA-2021:1561 - Security Advisory

Topic

Red Hat OpenShift Container Platform release 4.7.12 is now available with updates to packages and images that fix several bugs.

This release includes a security update for Red Hat OpenShift Container Platform 4.7.12.

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.

Description

Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or private
cloud deployments.

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

https://access.redhat.com/errata/RHSA-1562

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/4.7/release_notes/ocp-4-7-release-notes.html

This update fixes the following bugs among others:

• Previously, the node-exporter daemonset's mountstats collector caused high memory usage on nodes with NFS mount points. By disabling the mountstats collector, this fix reduces memory usage. (BZ#1955469)
• A previous change to gophercloud/utils introduced a custom HTTP client that uses a self-signed certificate. But because this change removed settings from DefaultTransport, including those for proxy environment variables, this caused failures for installations that use both self-signed certificates and proxies. In this update, the custom HTTP client inherits settings from DefaultTransport, so now OCP can be installed with self-signed certificates and proxies. (BZ#1943500)
• Previously, bare metal deployments failed when large packet transfers between Ironic and the RAM disk resulted in connection failures. In this update, Ironic queries the RAM disk for information to work around the connection error, allowing deployments to succeed.(BZ#1958965)
• Previously, when an IPv6 cluster was started on nodes that had IPv4 addresses, kublet sometimes used the nodes' IPv4 IP addresses instead of their IPv6 IP addresses, which prevented host-network pods from reaching IPv6-only pods. This update changes the way node IP addresses are chosen. Now, all nodes have IPv6 addresses. (BZ#1942488)
• Previously, OVN changed the source IP addresses of hairpin traffic packets to the IP address of the load balancer, which sometimes blocked traffic when a network policy was in use. With this update, Kuryr opens traffic to the IP addresses of all services in a network policy's namespace, and hairpin traffic flows freely. (BZ#1959766)

Security Fix(es):

• golang-github-gorilla-websocket: integer overflow leads to denial of service (CVE-2020-27813)

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.

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:4.7.12-x86_64

The image digest is sha256:2029c5779202293f23418d47a1a823c4e4c8539c1ab25e8bda30d48335b4892e

(For s390x architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.7.12-s390x

The image digest is sha256:5f4aa1beddcf61182b715bc6301bf39ca1d967225b1052e3e41e02464bd9989b

(For ppc64le architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.7.12-ppc64le

The image digest is sha256:44c395af371114178a0d2a06c9db60055608b3974bb0e4a58da930ce34c3bec9

All OpenShift Container Platform 4.7 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/4.7/updating/updating-cluster-between-minor.html#understanding-upgrade-channels_updating-cluster-between-minor

Solution

For OpenShift Container Platform 4.7 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/4.7/release_notes/ocp-4-7-release-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.7/updating/updating-cluster-cli.html

Affected Products

• Red Hat OpenShift Container Platform 4.7 for RHEL 8 x86_64
• Red Hat OpenShift Container Platform for Power 4.7 for RHEL 8 ppc64le
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.7 for RHEL 8 s390x

Fixes

• BZ - 1902111 - CVE-2020-27813 golang-github-gorilla-websocket: integer overflow leads to denial of service
• BZ - 1926577 - newly added 'excessive etcd leader changes' test case failing in serial job
• BZ - 1942141 - [4.7] cinder storageclass creates persistent volumes with wrong label failure-domain.beta.kubernetes.io/zone in multi availability zones architecture on OSP 16.
• BZ - 1942488 - [4.7] dual stack nodes with OVN single ipv6 fails on bootstrap phase
• BZ - 1943500 - openshift installer fails immediately failed to fetch Install Config
• BZ - 1947097 - [4.7z] upgrade from ocp 4.5 to 4.6 does not clear SNAT rules on ovn
• BZ - 1948396 - [oVirt] oVirt credentials secret contains unnecessary "ovirt_cafile"
• BZ - 1950261 - 4.7->4.6 rollbacks stuck on prometheusrules admission webhook "no route to host"
• BZ - 1951726 - [OCP 4.7] Slow PV creation with vsphere
• BZ - 1952149 - oc adm top reporting unknown status for Windows node
• BZ - 1955449 - [4.7] Drop crio image metrics with high cardinality
• BZ - 1955462 - [4.7] Drop container_memory_failures_total metric because of high cardinality
• BZ - 1955469 - [4.7] Disable collection of node_mountstats_nfs metrics in node_exporter
• BZ - 1955689 - MAO does not react to events triggered from Validating Webhook Configurations
• BZ - 1955883 - Backport upstream fix for Kubelet getting stuck in DiskPressure
• BZ - 1956270 - endpoint slice controller doesn't handle services target port correctly
• BZ - 1956797 - [4.7] Panic in authentication-operator invoking webhook authorization
• BZ - 1958797 - Only run test/extended/router/idle tests on OpenshiftSDN or OVNKubernetes
• BZ - 1958965 - Ironic execute_deploy_steps command to ramdisk times out, resulting in a failed deployment in 4.7
• BZ - 1959009 - operator-lifecycle-manager-packageserver flaps Available=False despite unavailableReplicas <= maxUnavailable
• BZ - 1959191 - Set LABEL io.openshift.release.operator=true for driver-toolkit image addition to payload
• BZ - 1959766 - Problem in trying to connect through the service to a member that is the same as the caller.
• BZ - 1960275 - e2e fix for third-party network plugin conformance testing

CVEs

• CVE-2020-27813
• CVE-2020-28362
• CVE-2021-3114
• CVE-2021-21639
• CVE-2021-21640
• CVE-2021-28163
• CVE-2021-28165
• CVE-2021-30465

References

• https://access.redhat.com/security/updates/classification/#moderate