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CVE-2023-31347

Quick assessment

Affected
AMD 3rd Gen AMD EPYC™ Processors
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

AMD SEV-SNP是美国超威半导体（AMD）公司的一个安全加密虚拟化固件。使用单个密钥来加密系统内存。 AMD SEV-SNP存在安全漏洞，该漏洞源于代码错误。

AI Predicted 4.3 Difficulty: Hard EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1498.001 · Direct Network Flood
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I. Basic Information for CVE-2023-31347

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Due to a code bug in Secure_TSC, SEV firmware may allow an attacker with high privileges to cause a guest to observe an incorrect TSC when Secure TSC is enabled potentially resulting in a loss of guest integrity.  
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
AMD SEV-SNP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AMD SEV-SNP是美国超威半导体（AMD）公司的一个安全加密虚拟化固件。使用单个密钥来加密系统内存。 AMD SEV-SNP存在安全漏洞，该漏洞源于代码错误。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
AMD 3rd Gen AMD EPYC™ Processors various -
AMD 4th Gen AMD EPYC™ Processors various -

II. Public POCs for CVE-2023-31347

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III. Intelligence Information for CVE-2023-31347

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Other References for CVE-2023-31347 (1)

Same Patch Batch · AMD · 2024-02-13 · 6 CVEs total

CVE-2023-20570 AMD UltraScale 安全漏洞
CVE-2023-31346 AMD SEV-SNP 安全漏洞
CVE-2021-46757 AMD Embedded Processors 安全漏洞
CVE-2023-20587 AMD Processor 安全漏洞
CVE-2023-20579 AMD Processor 安全漏洞

IV. Related Vulnerabilities

Same product: 3rd Gen AMD EPYC™ Processors
Same vendor: AMD

V. Comments for CVE-2023-31347

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