RHSA-2020:1485 - Security Advisory

Topic

An update for runc is now available for Red Hat OpenShift Container Platform 4.3.

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

The runC tool is a lightweight, portable implementation of the Open Container Format (OCF) that provides container runtime.

Security Fix(es):

• runc: volume mount race condition with shared mounts led to information leak and 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 4.3 see the following documentation, which
will be updated shortly for release 4.3.13, for important instructions on
how to upgrade your cluster and fully apply this asynchronous errata
update:

https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.

Affected Products

• Red Hat OpenShift Container Platform 4.3 for RHEL 7 x86_64

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