Moderate: OpenShift Container Platform 4.9.22 security update

Topic

Red Hat OpenShift Container Platform release 4.9.22 is now available with
updates to packages and images that fix several bugs and add enhancements.

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.

Security Fix(es):

• golang: net: incorrect parsing of extraneous zero characters at the beginning of an IP address octet (CVE-2021-29923)
• golang: net/http/httputil: panic due to racy read of persistConn after handler panic (CVE-2021-36221)

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.

Solution

For OpenShift Container Platform 4.9 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/4.9/release_notes/ocp-4-9-release-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.9/updating/updating-cluster-cli.html

Affected Products

• Red Hat OpenShift Container Platform 4.9 for RHEL 8 x86_64
• Red Hat OpenShift Container Platform 4.9 for RHEL 7 x86_64
• Red Hat OpenShift Container Platform for Power 4.9 for RHEL 8 ppc64le
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.9 for RHEL 8 s390x
• Red Hat OpenShift Container Platform for ARM 64 4.9 aarch64

Fixes

• BZ - 1992006 - CVE-2021-29923 golang: net: incorrect parsing of extraneous zero characters at the beginning of an IP address octet
• BZ - 1995656 - CVE-2021-36221 golang: net/http/httputil: panic due to racy read of persistConn after handler panic

CVEs

• CVE-2021-29923
• CVE-2021-36221

References

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