github.com/kubernetes/kubernetes is vulnerable to privilege escalation. Authenticated users are able to directly access a backend server through the Kubernetes API server using specially crafted requests. A remote attacker who is authenticated to the Kubernetes API server only will be able to send arbitrary requests to the backend.
access.redhat.com/errata/RHSA-2018:2908
access.redhat.com/security/updates/classification/#critical
access.redhat.com/security/vulnerabilities/3716411
bugzilla.redhat.com/show_bug.cgi?id=1607150
bugzilla.redhat.com/show_bug.cgi?id=1626281
bugzilla.redhat.com/show_bug.cgi?id=1628371
bugzilla.redhat.com/show_bug.cgi?id=1628799
bugzilla.redhat.com/show_bug.cgi?id=1629001
bugzilla.redhat.com/show_bug.cgi?id=1631087
bugzilla.redhat.com/show_bug.cgi?id=1632130
bugzilla.redhat.com/show_bug.cgi?id=1633767
docs.openshift.com/container-platform/3.9/release_notes/ocp_3_9_release_notes.html