Security Bulletin
Summary
POWER9: In response to a weakness in a set of PowerVM service procedures a new Power System firmware update is being released to address Common Vulnerabilities and Exposures issue number CVE 2021-20505.
Vulnerability Details
CVEID: CVE-2021-20505
DESCRIPTION: The PowerVM Logical Partition Mobility(LPM) encryption key exchange protocol can be compromised. If an attacker has the ability to capture encrypted LPM network traffic and is able to gain service access to the FSP they can use this information to perform a series of PowerVM service procedures to decrypt the captured migration traffic
CVSS Base score: 4.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198232 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N)
Affected Products and Versions
Affected Product(s) | Version(s) |
PowerVM Hypervisor | FW920 |
PowerVM Hypervisor | FW930 |
PowerVM Hypervisor | FW940 |
PowerVM Hypervisor | FW950 |
Remediation/Fixes
2) IBM Power System H922 (9223-22H, 9223-22S)
3) IBM Power System S914 (9009-41A, 9009-41G)
4) IBM Power System S924 (9009-42A, 9009-42G)
5) IBM Power System H924 (9223-42H, 9223-42S)
6) IBM Power System E950 (9040-MR9)
7) IBM Power System E980 (9080-M98, 9080-M9S)
Workarounds and Mitigations
None
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References
Change History
06 Apr 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:
28 July 2021
UID
ibm16475619