CVE-2021-38923: Critical severity IBM Powervm Hypervisor Firmware vulnerability

Published Sep 30, 2021
·
Updated

IBM PowerVM Hypervisor could allow a privileged user to gain access to another VM due to assigning duplicate WWPNs.

Other sources

IBM PowerVM Hypervisor FW1010 could allow a privileged user to gain access to another VM due to assigning duplicate WWPNs. IBM X-Force ID: 210162.

Affected Software

5 affected components
IBM Powervm Hypervisor Firmware=1010
IBM PowerVM Hypervisor
IBM PowerVM Hypervisor<=FW1010
All of the following
IBM Powervm Hypervisor Firmware=1010
IBM PowerVM Hypervisor

Event History

Sep 30, 2021
CVE Published
via IBM·12:00 AM
Oct 6, 2021
CVE Published
via MITRE·05:50 PM
Data Sourced
via MITRE·05:50 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·06:15 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2021-38923?

CVE-2021-38923 is considered a high-severity vulnerability due to the potential for unauthorized access between virtual machines.

2

How do I fix CVE-2021-38923?

To fix CVE-2021-38923, ensure that unique world wide port names (WWPNs) are assigned to avoid conflicts.

3

Who is affected by CVE-2021-38923?

CVE-2021-38923 affects users of IBM PowerVM Hypervisor Firmware version 1010.

4

What are the main risks of CVE-2021-38923?

The main risks include potential unauthorized access to sensitive data in other virtual machines due to WWPN duplication.

5

Can CVE-2021-38923 be exploited remotely?

CVE-2021-38923 requires a privileged user to exploit the vulnerability, limiting remote attack potential.

Company

Resources

Contact

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