IBM Support

Security Bulletin: This Power System update is being released to address CVE 2023-30438

Security Bulletin


Summary

An internally discovered vulnerability in PowerVM on IBM Power9 and Power10 systems could allow an attacker with privileged user access to a logical partition to perform an undetected violation of the isolation between logical partitions which could lead to data leakage or the execution of arbitrary code in other logical partitions on the same physical server.

Vulnerability Details

CVEID:   CVE-2023-30438
DESCRIPTION:   A vulnerability was identified in IBM PowerVM that could lead to an undetected violation of the isolation between partitions.
CVSS Base score: 9.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/252706 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)Version(s)
PowerVM HypervisorFW1030.00 - FW1030.10
PowerVM HypervisorFW1020.00 - FW1020.30
PowerVM HypervisorFW1010.00 - FW1010.50
PowerVM HypervisorFW950.00 - FW950.70

 

For Power9 servers, only FW950 is supported but all firmware releases on the listed products are vulnerable.

See the PSIRT Q&A for more information.

Remediation/Fixes

IBM strongly recommends customers with the products below install FW950.71(950_124) or newer to remediate this vulnerability.

Power 9

1) IBM Power System L922 (9008-22L)

2) IBM Power System S922 (9009-22A, 9009-22G)

3) IBM Power System H922 (9223-22H, 9223-22S)

4) IBM Power System S914 (9009-41A, 9009-41G)

5) IBM Power System S924 (9009-42A, 9009-42G)

6) IBM Power System H924 (9223-42H, 9223-42S)

7) IBM Power System E950 (9040-MR9)

8) IBM Power System E980 (9080-M9S)

 
IBM strongly recommends customers with the products below install FW1010.51(1010_163), FW1030.11(1030_052) or newer to remediate this vulnerability.

Power 10

1) IBM Power System E1080 (9080-HEX)

 
IBM strongly recommends customers with the products below install FW1020.31(1020_102), FW1030.11(1030_058) or newer to remediate this vulnerability.

Power 10

1) IBM Power System S1022 (9105-22A)

2) IBM Power System S1024 (9105-42A)

3) IBM Power System S1022s (9105-22B)

4) IBM Power System S1014 (9105-41B)

5) IBM Power System L1022 (9786-22H)

6) IBM Power System L1024 (9786-42H)

7) IBM Power System E1050 (9043-MRX)

 

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

17 May 2023: 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

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. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location

Worldwide

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"HW1A1","label":"IBM Power Systems"},"Component":"","Platform":[{"code":"PF009","label":"Firmware"}],"Version":"all","Edition":"","Line of Business":{"code":"LOB57","label":"Power"}}]

Document Information

Modified date:
23 May 2023

UID

ibm16993021