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Security Bulletin: The PowerVM hypervisor can assign duplicate WWPN's to virtual fiber channel adapters in peer VMs

Security Bulletin


Summary

In some cases the PowerVM hypervisor can assign duplicate WWPN's to virtual fiber channel adapters in peer VMs after a specific series of service actions are performed

Vulnerability Details

CVEID:   CVE-2021-38923
DESCRIPTION:   IBM PowerVM Hypervisor could allow a privileged user to gain access to another VM due to assigning duplicate WWPNs.
CVSS Base score: 8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/210162 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)Version(s)
PowerVM HypervisorFW1010

Remediation/Fixes

Customers with the product below should install FW1010.01(1010_069) or newer to remediate this concern.

Power 10

1) IBM Power System E1080 (9080-HEX)

Workarounds and Mitigations

None

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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

30 Sep 2021: 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.

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:
05 October 2021

UID

ibm16495879

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