RHSA-2019:3239 - Security Advisory

Topic

An update for atomic-openshift is now available for Red Hat OpenShift Container Platform 3.10.

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.

Security Fix(es):

• kubernetes: YAML parsing vulnerable to "Billion Laughs" attack, allowing for remote denial of service (CVE-2019-11253)
• kubernetes: Incomplete fixes for CVE-2019-1002101 and CVE-2019-11246, kubectl cp potential directory traversal (CVE-2019-11249)
• kube-apiserver: DoS with crafted patch of type json-patch (CVE-2019-1002100)

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 3.10 see the following documentation,
which will be updated shortly for release 3.10.181, for important
instructions on how to upgrade your cluster and fully apply this
asynchronous errata update:

https://docs.openshift.com/container-platform/3.10/release_notes/ocp_3_10_release_notes.html

Affected Products

• Red Hat OpenShift Container Platform 3.10 x86_64
• Red Hat OpenShift Container Platform for Power 3.10 ppc64le

Fixes

• BZ - 1683190 - CVE-2019-1002100 kube-apiserver: DoS with crafted patch of type json-patch
• BZ - 1737651 - CVE-2019-11249 kubernetes: Incomplete fixes for CVE-2019-1002101 and CVE-2019-11246, kubectl cp potential directory traversal
• BZ - 1757701 - CVE-2019-11253 kubernetes: YAML parsing vulnerable to "Billion Laughs" attack, allowing for remote denial of service

CVEs

• CVE-2019-11249
• CVE-2019-11253
• CVE-2019-1002100

References

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