IBM Support

Security Bulletin: A Security Vulnerability affects IBM Cloud Private Kubernetes (CVE-2019-11248)

Created by Cynthia Glass on
Published URL:
https://www.ibm.com/support/pages/node/1098315
1098315

Security Bulletin


Summary

A security vulnerability affects IBM Cloud Private Kubernetes

Vulnerability Details

CVEID: CVE-2019-11248
DESCRIPTION: Kubernetes could allow a remote attacker to obtain sensitive information, caused by the exposure of the debugging endpoint /debug/pprof by default on Kubelet healthz port. An attacker could exploit this vulnerability to obtain internal Kubelet memory addresses and configuration or cause a denial of service.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/164836 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)

Affected Products and Versions

IBM Cloud Private 3.1.0, 3.1.1, 3.1.2, 3.2.0

Remediation/Fixes

Product defect fixes and security updates are only available for the two most recent Continuous Delivery (CD) update packages

  • IBM Cloud Private 3.2.1
  • IBM Cloud Private 3.2.0
 
For IBM Cloud Private 3.2.0, apply October fix pack:
For IBM Cloud Private 3.1.0, 3.1.1, 3.1.2:
  • Upgrade to the latest Continuous Delivery (CD) update package, IBM Cloud Private 3.2.1. 
  • If required, individual product fixes can be made available between CD update packages for resolution of problems. Contact IBM support for assistance

Workarounds and Mitigations

None

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Important Note

IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk.

References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

23 November 2019 - Original version published

*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.

Document Location

Worldwide

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Document Information

Modified date:
23 November 2019

UID

ibm11098315

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