IBM Support

Security Bulletin: IBM Cloud Pak System is affected by a vulnerability in VMware component

Security Bulletin


A vulnerability is reported in the VMWare component, and this component is used by IBM Cloud Pak System. IBM Cloud Pak System addressed applicable CVE.

Vulnerability Details

CVEID:   CVE-2020-3959
DESCRIPTION:   Multiple VMware products are vulnerable to a denial of service, caused by a memory leak vulnerability in the VMCI module. A local authenticated attacker could exploit this vulnerability to crash the virtual machine's vmx process leading to a denial of service condition.
CVSS Base score: 3.3
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

Affected Product(s)Version(s)
IBM Cloud Pak Systemv2.2.6, v2.3.0.1,  v2.3.1.1, v2.3.2.0


For unsupported end of support releases the recommendation is to upgrade to fixed releases of the product.

For IBM Cloud Pak System v2.3.3.0 , system update to VMware ESXi 6.7, if you are running on  ESXi 6.5 refer to CVE-2020-3959 at

For IBM Cloud Pak System V2.3.0.1, v2.3.1.1, v.  

Upgrade  to IBM Cloud Pak System v2.3.3.0 or later. Cloud Pak System VMware component update to VMware ESXi 6.7. 

Contact Cloud Pak Support for assistance.


Workarounds and Mitigations


Get Notified about Future Security Bulletins




Change History

11 September 2020: Initial Publication

*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.


According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document Location


[{"Business Unit":{"code":"BU025","label":"IBM Cloud and Cognitive Software"},"Product":{"code":"SSFQWQ","label":"IBM Cloud Pak System"},"Component":"","Platform":[{"code":"PF016","label":"Linux"}],"Version":"2.3","Edition":""}]

Document Information

Modified date:
30 September 2020