5.8 - RHSA-2019:3811

Problem Description:

An update for atomic-openshift is now available for Red Hat OpenShift Container Platform 3.9.

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.

2. Relevant releases/architectures:

Red Hat OpenShift Container Platform 3.9 - noarch, x86_64

3. 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 atomic-openshift RPM package for Red Hat OpenShift Container Platform 3.9.102.

Security Fix(es):

* kubernetes: YAML parsing vulnerable to "Billion Laughs" attack, allowing for remote denial of service (CVE-2019-11253)

* atomic-openshift: OpenShift builds don't verify SSH Host Keys for the Git repository (CVE-2019-10150)

* kubernetes: Incomplete fixes for CVE-2019-1002101 and CVE-2019-11246, kubectl cp potential directory traversal (CVE-2019-11249)

* 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.

4. Solution:

For OpenShift Container Platform 3.9 see the following documentation, which will be updated shortly for release 3.9.102, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:

https://docs.openshift.com/container-platform/3.9/release_notes/ocp_3_9_rel ease_notes.html

5. Bugs fixed (https://bugzilla.redhat.com/):

1713433 - CVE-2019-10150 atomic-openshift: OpenShift builds don't verify SSH Host Keys for the git repository 1737651 - CVE-2019-11249 kubernetes: Incomplete fixes for CVE-2019-1002101 and CVE-2019-11246, kubectl cp potential directory traversal 1753495 - CVE-2019-11251 kubernetes: `kubectl cp` allows for arbitrary file write via double symlinks 1757701 - CVE-2019-11253 kubernetes: YAML parsing vulnerable to "Billion Laughs" attack, allowing for remote denial of service