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Security Bulletin: This Power System update is being released to address CVE 2023-30440

Security Bulletin


A vulnerability was identified internally by IBM related to SRIOV virtual function support in PowerVM. An attacker with privileged user access to a logical partition that has an assigned SRIOV virtual function (VF) may be able to create a Denial of Service of the VF assigned to other logical partitions on the same physical server and/or undetected arbitrary data corruption.

Vulnerability Details

CVEID:   CVE-2023-30440
DESCRIPTION:   IBM PowerVM Hypervisor could allow a local attacker with control a partition that has been assigned SRIOV virtual function (VF) to cause a denial of service to a peer partition or arbitrary data corruption.
CVSS Base score: 6.7
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:H)

Affected Products and Versions

Affected Product(s)Version(s)
PowerVM HypervisorFW860.00 - FW860.B1
PowerVM HypervisorFW950.00 - FW950.70
PowerVM HypervisorFW1010.00 - FW1010.50
PowerVM HypervisorFW1020.00 - FW1020.30
PowerVM HypervisorFW1030.00 - FW1030.10

For Power8 servers, only a FW860 fix is being released but all firmware releases on the listed products are vulnerable.

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



Customers with the products below should install FW860.B3(860_245) or newer to remediate this vulnerability.

Power 8

1)  IBM Power System S812 (8284-21A)

2) IBM Power System S822 (8284-22A)

3) IBM Power System S814 (8286-41A)

4) IBM Power System S824 (8286-42A)

5) IBM Power System S812L( 8247-21L)

6) IBM Power System S822L (8247-22L)

7) IBM Power System S824L (8247-42L)

8) IBM Power System E850 (8408-E8E)

9) IBM Power System E850C (8408-44E)

10) IBM Power System E870 (9119-MME)

11) IBM Power System E880 (9119-MHE)

12) IBM Power System E870C (9080-MME)

13) IBM Power System E880C (9080-MHE)


Customers with the products below should 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)

Customers with the products below should install FW1010.51(1010_159), FW1030.11(1030_052) or newer to remediate this vulnerability.

Power 10

1) IBM Power System E1080 (9080-HEX)

Customers with the products below should 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


Get Notified about Future Security Bulletins




Change History

22 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.


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


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Document Information

Modified date:
31 May 2023