RHSA-2020:0688 - Security Advisory

Topic

Red Hat OpenShift Container Platform release 4.2.22 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):

• runc: volume mount race condition with shared mounts led to information leak/integrity manipulation (CVE-2019-19921)

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 4.2 see the following documentation, which
will be updated shortly for release 4.2.22, for important instructions on
how to upgrade your cluster and fully apply this asynchronous errata
update:

https://docs.openshift.com/container-platform/4.2/release_notes/ocp-4-2-release-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.2/updating/updating-cluster-cli.html.

Affected Products

• Red Hat OpenShift Container Platform 4.2 for RHEL 8 x86_64
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.2 for RHEL 8 s390x

Fixes

• BZ - 1796107 - CVE-2019-19921 runc: volume mount race condition with shared mounts leads to information leak/integrity manipulation

CVEs

• CVE-2019-19921

References

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