RHSA-2019:2766 - Security Advisory

Topic

An update for gRPC, included in multus-cni-container, operator-lifecycle-manager-container, and operator-registry-container 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 Important. 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 updated container images for multus-cni, operator-lifecycle-manager, and operator-registry in Red Hat OpenShift Container Platform 4.1.15. Each of these container images includes gRPC, which has been updated with the below fixes.

Security Fix(es):

• HTTP/2: flood using PING frames results in unbounded memory growth (CVE-2019-9512)
• HTTP/2: flood using HEADERS frames results in unbounded memory growth (CVE-2019-9514)
• HTTP/2: flood using SETTINGS frames results in unbounded memory growth (CVE-2019-9515)

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.z, 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 7 x86_64

Fixes

• BZ - 1735645 - CVE-2019-9512 HTTP/2: flood using PING frames results in unbounded memory growth
• BZ - 1735744 - CVE-2019-9514 HTTP/2: flood using HEADERS frames results in unbounded memory growth
• BZ - 1735745 - CVE-2019-9515 HTTP/2: flood using SETTINGS frames results in unbounded memory growth

CVEs

• CVE-2019-9512
• CVE-2019-9514
• CVE-2019-9515

References

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