RHSA-2019:3266 - Security Advisory

Topic

An update for openshift is now available for Red Hat OpenShift Container Platform 4.1.

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.

This advisory contains the openshift RPM packages for Red Hat
OpenShift Container Platform 4.1.21.

Security Fix(es):

• kubernetes: `kubectl cp` allows for arbitrary file write via double symlinks (CVE-2019-11251)

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 4.1 see the following documentation, which
will be updated shortly for release 4.1.21, for important instructions on
how to upgrade your cluster and fully apply this asynchronous errata
update:

https://docs.openshift.com/container-platform/4.1/release_notes/ocp-4-1-release-notes.html

Affected Products

• Red Hat OpenShift Container Platform 4.1 for RHEL 8 x86_64
• Red Hat OpenShift Container Platform 4.1 for RHEL 7 x86_64

Fixes

• BZ - 1753495 - CVE-2019-11251 kubernetes: `kubectl cp` allows for arbitrary file write via double symlinks

CVEs

• CVE-2019-11251

References

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