Security Bulletin
Summary
Red Hat OpenShift on IBM Cloud is affected by a security vulnerability in Kubernetes API server that allows access to custom resources via wrong scope (CVE-2019-11247).
Vulnerability Details
CVE-ID: CVE-2019-11247
Description: Kubernetes could allow a remote authenticated attacker to gain unauthorized access to the system, caused by an error in the API server. By sending a specially crafted request using the wrong scope, an attacker could exploit this vulnerability to create, view, update or delete the cluster-scoped resource.
CVSS Base Score: 8.1
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/164767 for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N)
Affected Products and Versions
Remediation/Fixes
ibmcloud ks clusters
ibmcloud ks cluster-update --cluster <cluster name or ID> --kube-version 3.11_openshift
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References
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
31 October 2019
UID
ibm11101957