CVE-2023-31315
hw: amd: SMM Lock Bypass
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track*
*SSVC
Descriptions
Improper validation in a model specific register (MSR) could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is enabled, potentially leading to arbitrary code execution.
A flaw was found in hw. Improper validation in a model-specific register (MSR) could allow a malicious program with ring0 access to modify the SMM configuration while the SMI lock is enabled. This issue can lead to arbitrary code execution.
Enrique Nissim and Krzysztof Okupski discovered that some AMD processors did not properly restrict access to the System Management Mode configuration when the SMM Lock was enabled. A privileged local attacker could possibly use this issue to further escalate their privileges and execute arbitrary code within the processor's firmware layer.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track*
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-04-27 CVE Reserved
- 2024-08-09 CVE Published
- 2024-09-12 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-94: Improper Control of Generation of Code ('Code Injection')
CAPEC
References (4)
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7014.html | 2024-09-12 | |
| https://access.redhat.com/security/cve/CVE-2023-31315 | 2024-10-02 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2279283 | 2024-10-02 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| AMD Search vendor "AMD" | AMD EPYC™ Embedded 3000 Search vendor "AMD" for product "AMD EPYC™ Embedded 3000" | <= Search vendor "AMD" for product "AMD EPYC™ Embedded 3000" and version " <= " | en |
Affected
| ||||||
| AMD Search vendor "AMD" | AMD EPYC™ Embedded 7002 Search vendor "AMD" for product "AMD EPYC™ Embedded 7002" | <= Search vendor "AMD" for product "AMD EPYC™ Embedded 7002" and version " <= " | en |
Affected
| ||||||
| AMD Search vendor "AMD" | AMD EPYC™ Embedded 7003 Search vendor "AMD" for product "AMD EPYC™ Embedded 7003" | <= Search vendor "AMD" for product "AMD EPYC™ Embedded 7003" and version " <= " | en |
Affected
| ||||||
| AMD Search vendor "AMD" | AMD Ryzen™ Embedded R1000 Search vendor "AMD" for product "AMD Ryzen™ Embedded R1000" | <= Search vendor "AMD" for product "AMD Ryzen™ Embedded R1000" and version " <= " | en |
Affected
| ||||||
| AMD Search vendor "AMD" | AMD Ryzen™ Embedded R2000 Search vendor "AMD" for product "AMD Ryzen™ Embedded R2000" | <= Search vendor "AMD" for product "AMD Ryzen™ Embedded R2000" and version " <= " | en |
Affected
| ||||||
| AMD Search vendor "AMD" | AMD Ryzen™ Embedded 5000 Search vendor "AMD" for product "AMD Ryzen™ Embedded 5000" | <= Search vendor "AMD" for product "AMD Ryzen™ Embedded 5000" and version " <= " | en |
Affected
| ||||||
| AMD Search vendor "AMD" | AMD Ryzen™ Embedded 7000 Search vendor "AMD" for product "AMD Ryzen™ Embedded 7000" | <= Search vendor "AMD" for product "AMD Ryzen™ Embedded 7000" and version " <= " | en |
Affected
| ||||||
| AMD Search vendor "AMD" | AMD Ryzen™ Embedded V1000 Search vendor "AMD" for product "AMD Ryzen™ Embedded V1000" | <= Search vendor "AMD" for product "AMD Ryzen™ Embedded V1000" and version " <= " | en |
Affected
| ||||||
| AMD Search vendor "AMD" | AMD Ryzen™ Embedded V2000 Search vendor "AMD" for product "AMD Ryzen™ Embedded V2000" | <= Search vendor "AMD" for product "AMD Ryzen™ Embedded V2000" and version " <= " | en |
Affected
| ||||||
| AMD Search vendor "AMD" | AMD Ryzen™ Embedded V3000 Search vendor "AMD" for product "AMD Ryzen™ Embedded V3000" | <= Search vendor "AMD" for product "AMD Ryzen™ Embedded V3000" and version " <= " | en |
Affected
| ||||||
| AMD Search vendor "AMD" | AMD Ryzen™ 3000 Series Desktop Processors Search vendor "AMD" for product "AMD Ryzen™ 3000 Series Desktop Processors" | <= Search vendor "AMD" for product "AMD Ryzen™ 3000 Series Desktop Processors" and version " <= " | en |
Affected
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