CVE-2021-26407
Quick assessment
Affected
AMD 2nd Gen EPYC
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 Secure Processor（ASP）是美国超威半导体（AMD）公司的一款独立的 ARM Coretex-A5 芯片。 AMD Secure Processor (ASP)、AMD System Management Unit (SMU)、AMD Secure Encrypted Virtualization (SEV)存在安全漏洞。攻击者利用该漏洞导致信息泄露。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2021-26407
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A randomly generated Initialization Vector (IV) may lead to a collision of IVs with the same key potentially resulting in information disclosure.
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 Secure Processor 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AMD Secure Processor（ASP）是美国超威半导体（AMD）公司的一款独立的 ARM Coretex-A5 芯片。 AMD Secure Processor (ASP)、AMD System Management Unit (SMU)、AMD Secure Encrypted Virtualization (SEV)存在安全漏洞。攻击者利用该漏洞导致信息泄露。
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 | 2nd Gen EPYC | various | - |
|
II. Public POCs for CVE-2021-26407
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-26407 (1)
Same Patch Batch · AMD · 2023-01-10 · 14 CVEs total
| CVE-2021-26316 | AMD Athlon 输入验证错误漏洞 | |
| CVE-2021-26346 | AMD Secure Processor 输入验证错误漏洞 | |
| CVE-2021-46767 | AMD Secure Processor (ASP) 输入验证错误漏洞 | |
| CVE-2021-46768 | AMD Secure Encrypted Virtualization 缓冲区错误漏洞 | |
| CVE-2021-46795 | 多款AMD产品 安全漏洞 | |
| CVE-2022-23813 | AMD System Management Unit 缓冲区错误漏洞 | |
| CVE-2023-20522 | AMD Secure Processor(ASP) 输入验证错误漏洞 | |
| CVE-2023-20523 | AMD Secure Processor(ASP) 安全漏洞 | |
| CVE-2023-20525 | AMD Secure Processor(ASP) 输入验证错误漏洞 | |
| CVE-2023-20528 | AMD System Management Unit(SMU) 输入验证错误漏洞 | |
| CVE-2023-20529 | AMD System Management Unit(SMU) 缓冲区错误漏洞 | |
| CVE-2023-20531 | AMD System Management Unit(SMU) 缓冲区错误漏洞 | |
| CVE-2023-20532 | AMD System Management Unit(SMU) 输入验证错误漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-26407
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