RHSA-2021:3001 - Security Advisory

Topic

The components for Red Hat OpenShift Container Platform for Windows Containers 3.0.0 are now available.

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

Windows Container Support for Red Hat OpenShift allows you to deploy
Windows container workloads running on Windows Server containers.

Security Fix(es):

• containernetworking-cni: Arbitrary path injection via type field in CNI configuration (CVE-2021-20206)

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.

Bug Fix(es):

• LB service unstable with multiple Windows nodes and pods (BZ#1905950)
• WMCO patch pub-key-hash annotation to Linux node (BZ#1930791)
• kube-proxy service terminated unexpectedly after recreated LB service (BZ#1939968)
• Telemetry info not completely available to identify windows nodes (BZ#1948037)
• LoadBalancer Service type with invalid external loadbalancer IP breaks the datapath (BZ#1952914)
• WMCO incorrectly shows node as ready after a failed configuration (BZ#1953692)
• Windows pod with a Projected Volume is stuck at ContainerCreating (BZ#1971745)

Solution

For Windows Machine Config Operator upgrades, see the following documentation:
https://docs.openshift.com/container-platform/latest/windows_containers/windows-node-upgrades.html

Affected Products

• Red Hat OpenShift Container Platform 4.8 for RHEL 8 x86_64

Fixes

• BZ - 1905950 - LB service unstable with multiple Windows nodes and pods
• BZ - 1919391 - CVE-2021-20206 containernetworking-cni: Arbitrary path injection via type field in CNI configuration
• BZ - 1930791 - WMCO patch pub-key-hash annotation to Linux node
• BZ - 1939968 - kube-proxy service terminated unexpectedly after recreated LB service
• BZ - 1948037 - Telemetry info not completely available to identify windows nodes
• BZ - 1952914 - LoadBalancer Service type with invalid external loadbalancer IP breaks the datapath
• BZ - 1953692 - WMCO incorrectly shows node as ready after a failed configuration
• BZ - 1971745 - Windows pod with a Projected Volume is stuck at ContainerCreating
• BZ - 1983153 - WMCO auto upgrade from v2.0.2 to v3.0.0 failed
• WINC-618 - Windows Container Support for Red Hat OpenShift 3.0.0 release

CVEs

• CVE-2021-20206

References

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