AMD SMM Callout Vulnerability
AMD ID: AMD-SB-7028
Potential Impact: Arbitrary Code Execution
Severity: High
Summary
AMD SMM callout vulnerability in the AmdPlatformRasSspSmm driver supported on multiple processors.
Eclypsium reported an SMM callout vulnerability within the AmdPlatformRasSspSmm UEFI module, which is supported on various processors. The report noted that this vulnerability could allow attackers to execute arbitrary code within System Management Mode.
Analysis by AMD is that a ring 0 attacker could modify boot service tables to point to their own code, potentially resulting in arbitrary code execution. AMD has released mitigations to address this vulnerability. Please refer to the details below.
CVE Details
Refer to Glossary for explanation of terms
CVE |
CVSS Severity |
CVE Description |
CVE-2024-21924 |
8.2 ( High) |
SMM callout vulnerability within the AmdPlatformRasSspSmm driver could allow a ring 0 attacker to modify boot services handlers, potentially resulting in arbitrary code execution. |
Affected Products and Mitigation
Data Center
2nd Gen AMD EPYC™ Processors formerly codenamed "Rome"
CVE |
Mitigation |
|
CVE-2024-21924 |
8.2 (High) |
Platform Initialization (PI) (Requires FW flash) |
Code Name |
CPUID |
Rome PI 1.0.0.K (2024-09-05) |
Rome |
0x00830F10h |
|
Embedded
| CVE | AMD EPYCTM Embedded 7002 |
CVE-2024-21924 |
EmbRomePI-SP3 1.0.0.D |
Client
CVE |
AMD Ryzen™ Threadripper™ PRO Processors (Formerly codenamed) “Castle Peak” WS SP3 |
AMD Ryzen™ Threadripper™ PRO 7000 WX-Series Processors (Formerly codenamed) “Storm Peak” |
AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors (Formerly codenamed) “Chagall” WS |
CVE-2024-21924 |
ChagallWSPI-sWRX8 CastlePeakWSPI-sWRX8 |
StormPeakPI-SP6 StormPeakPI-SP6 |
ChagallWSPI-sWRX8
|
Acknowledgement
AMD thanks the Eclypsium team for reporting this issue and engaging in coordinated vulnerability disclosure.
Revisions
Revision Date |
Description |
2025-02-11 |
Initial publication |
DISCLAIMER
The information contained herein is for informational purposes only and is subject to change without notice. While every precaution has been taken in the preparation of this document, it may contain technical inaccuracies, omissions and typographical errors, and AMD is under no obligation to update or otherwise correct this information. Advanced Micro Devices, Inc. makes no representations or warranties with respect to the accuracy or completeness of the contents of this document, and assumes no liability of any kind, including the implied warranties of noninfringement, merchantability or fitness for particular purposes, with respect to the operation or use of AMD hardware, software or other products described herein. Any computer system has risks of security vulnerabilities that cannot be completely prevented or mitigated. No license, including implied or arising by estoppel, to any intellectual property rights is granted by this document. Terms and limitations applicable to the purchase or use of AMD’s products are as set forth in a signed agreement between the parties or in AMD's Standard Terms and Conditions of Sale.
AMD, the AMD Arrow logo, EPYC and combinations thereof are trademarks of Advanced Micro Devices, Inc. CVE and the CVE logo are registered trademarks of The MITRE Corporation. Other product names used in this publication are for identification purposes only and may be trademarks of their respective companies.
Third party content may be licensed to you directly by the third party that owns the content and is not licensed to you by AMD. ALL LINKED THIRD-PARTY CONTENT IS PROVIDED ‘AS IS’ WITHOUT A WARRANTY OF ANY KIND. USE OF SUCH THIRD-PARTY CONTENT IS DONE AT YOUR SOLE DISCRETION AND UNDER NO CIRCUMSTANCES WILL AMD BE LIABLE TO YOU FOR ANY THIRD-PARTY CONTENT. YOU ASSUME ALL RISK AND ARE SOLELY RESPONSIBILITY FOR ANY DAMAGES THAT MAY ARISE FROM YOUR USE OF THIRD-PARTY CONTENT.
© 2025 Advanced Micro Devices, Inc. All rights reserved.