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Document Subtype: Security Bulletin Document ID: hpesbcr04553en_us Last Updated: 2023-11-15 Release Date: 2023-11-14 Document Version: 1 Potential Security Impact: Local: Arbitrary Code Execution, Code Execution, Denial of Service (DoS), Elevated Privileges, Buffer Overflow Source: Hewlett Packard Enterprise, HPE Product Security Response Team VULNERABILITY SUMMARY Potential security vulnerabilities has been identified in certain HPE ProLiant DL/XL servers and HPE Cray Supercomputer using certain AMD EPYC processors. These vulnerabilities could be locally exploited to allow multiple vulnerabilities. References: CVE-2022-23820 CVE-2021-46774 CVE-2023-20533 CVE-2023-20519 CVE-2023-20566 CVE-2023-20521 CVE-2021-46766 CVE-2022-23830 CVE-2023-20526 CVE-2021-26345 SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. HPE ProLiant DL325 Gen10 Plus server - Prior to 2.84 (HFP 23.9) HPE ProLiant DL385 Gen10 Plus server - Prior to 2.84 (HFP 23.9) HPE ProLiant XL645d Gen10 Plus Server - Prior to 2.84 (HFP 23.9) HPE ProLiant XL675d Gen10 Plus Server - Prior to 2.84 (HFP 23.9) HPE Cray EX235n Server - Prior to 1.3.1 (HFP 23.9) HPE Cray EX425 Compute Blade - Prior to 1.7.2 (HFP 23.9) - Gen 2, and Gen 3 EPYC Processors. HPE Cray EX4252 Compute Blade - Prior to 1.4.0 (HFP 23.8) BACKGROUND HPE calculates CVSS using CVSS Version 3.1. If the score is provided from NIST, we will display Version 2.0, 3.0, or 3.1 as provided from NVD. Reference V3 Vector V3 Base Score V2 Vector V2 Base Score CVE-2021-26345 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L 1.9 (AV:L/AC:H/Au:M/C:N/I:N/A:P) 0.8 CVE-2021-46766 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N 2.5 (AV:L/AC:H/Au:M/C:P/I:N/A:N) 0.8 CVE-2021-46774 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:L 6.7 (AV:L/AC:H/Au:M/C:P/I:C/A:P) 4.9 CVE-2022-23820 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H 7.5 (AV:L/AC:H/Au:M/C:C/I:C/A:C) 5.9 CVE-2022-23830 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N 1.9 (AV:L/AC:H/Au:M/C:N/I:P/A:N) 0.8 CVE-2023-20519 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N 6.0 (AV:L/AC:L/Au:M/C:C/I:C/A:N) 5.9 CVE-2023-20521 CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L 3.3 (AV:A/AC:H/Au:M/C:P/I:N/A:P) 2.7 CVE-2023-20526 CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N 1.9 (AV:A/AC:H/Au:M/C:P/I:N/A:N) 1.2 CVE-2023-20533 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:H 6.1 (AV:L/AC:H/Au:M/C:N/I:P/A:C) 4.4 CVE-2023-20566 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N 5.3 (AV:L/AC:H/Au:M/C:N/I:C/A:N) 3.7 Information on CVSS is documented in HPE Customer Notice: HPSN-2008-002 RESOLUTION HPE has made the following software updates to resolve the vulnerabilities in HPE ProLiant DL/XL servers and HPE Cray Supercomputer with affected AMD EPYC Processors. BIOS v2.84 later (HFP 23.9 or later) BIOS v1.3.1 or later (HFP 23.9 or later) BIOS v1.4.0 or later (HFP 23.8 or later) BIOS v1.7.2 or later (HFP 23.9 or later) To locate the download for a certain component please perform the following steps: Click the following link: Hewlett Packard Enterprise Support Center Enter a product name from the list of impacted products above in the text search field and wait for a list of Suggested Products to display. From the Suggested Products list displayed, identify the desired product and select it. The page should refresh to include a selection for the "DRIVERS AND SOFTWARE" tab. Select the “DRIVERS AND SOFTWARE tab to find the components that you need and download them. Note: To ensure that you have selected the latest version of the firmware/driver, click the Revision History tab to check if a new version of the firmware/driver is available. HISTORY Version:1 (rev.1) - 15 November 2023 Initial release Third Party Security Patches: Third party security patches that are to be installed on systems running Hewlett Packard Enterprise (HPE) software products should be applied in accordance with the customer's patch management policy. Support: For issues about implementing the recommendations of this Security Bulletin, contact normal HPE Services support channel. For other issues about the content of this Security Bulletin, send e-mail to security-alert@hpe.com. Report: To report a potential security vulnerability for any HPE supported product: Web Form: https://www.hpe.com/info/report-security-vulnerability Email: security-alert@hpe.com Hewlett Packard Enterprise Product Security Response Policy: https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=a00100637en_us Subscribe: To initiate a subscription to receive future HPE Security Bulletin alerts via Email: http://www.hpe.com/support/Subscriber_Choice Security Bulletin Archive: A list of recently released Security Bulletins is available here: http://www.hpe.com/support/Security_Bulletin_Archive System management and security procedures must be reviewed frequently to maintain system integrity. HPE is continually reviewing and enhancing the security features of software products to provide customers with current secure solutions. "HPE is broadly distributing this Security Bulletin in order to bring to the attention of users of the affected HPE products the important security information contained in this Bulletin. HPE recommends that all users determine the applicability of this information to their individual situations and take appropriate action. HPE does not warrant that this information is necessarily accurate or complete for all user situations and, consequently, HPE will not be responsible for any damages resulting from user's use or disregard of the information provided in this Bulletin. To the extent permitted by law, HPE disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose, title and non-infringement." ©Copyright 2025 Hewlett Packard Enterprise Development LP Hewlett Packard Enterprise Development shall not be liable for technical or editorial errors or omissions contained herein. The information provided is provided "as is" without warranty of any kind. To the extent permitted by law, neither HPE nor its affiliates, subcontractors or suppliers will be liable for incidental, special or consequential damages including downtime cost; lost profits; damages relating to the procurement of substitute products or services; or damages for loss of data, or software restoration. The information in this document is subject to change without notice. Hewlett Packard Enterprise Development and the names of Hewlett Packard Enterprise Development products referenced herein are trademarks of Hewlett Packard Enterprise Development in the United States and other countries. Other product and company names mentioned herein may be trademarks of their respective owners.
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HPE has made the following software updates to resolve the vulnerabilities in HPE ProLiant DL/XL servers and HPE Cray Supercomputer with affected AMD EPYC Processors. BIOS v2.84 later (HFP 23.9 or later) BIOS v1.3.1 or later (HFP 23.9 or later) BIOS v1.4.0 or later (HFP 23.8 or later) BIOS v1.7.2 or later (HFP 23.9 or later) To locate the download for a certain component please perform the following steps: Click the following link: Hewlett Packard Enterprise Support Center Enter a product name from the list of impacted products above in the text search field and wait for a list of Suggested Products to display. From the Suggested Products list displayed, identify the desired product and select it. The page should refresh to include a selection for the "DRIVERS AND SOFTWARE" tab. Select the “DRIVERS AND SOFTWARE tab to find the components that you need and download them. Note: To ensure that you have selected the latest version of the firmware/driver, click the Revision History tab to check if a new version of the firmware/driver is available. HISTORY Version:1 (rev.1) - 15 November 2023 Initial release Third Party Security Patches: Third party security patches that are to be installed on systems running Hewlett Packard Enterprise (HPE) software products should be applied in accordance with the customer's patch management policy. Support: For issues about implementing the recommendations of this Security Bulletin, contact normal HPE Services support channel. For other issues about the content of this Security Bulletin, send e-mail to security-alert@hpe.com. Report: To report a potential security vulnerability for any HPE supported product: Web Form: https://www.hpe.com/info/report-security-vulnerability Email: security-alert@hpe.com Hewlett Packard Enterprise Product Security Response Policy: https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=a00100637en_us Subscribe: To initiate a subscription to receive future HPE Security Bulletin alerts via Email: http://www.hpe.com/support/Subscriber_Choice Security Bulletin Archive: A list of recently released Security Bulletins is available here: http://www.hpe.com/support/Security_Bulletin_Archive