CVE-2021-46795
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I. Basic Information for CVE-2021-46795
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A TOCTOU (time-of-check to time-of-use) vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially result in a denial of service.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
多款AMD产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AMD System Management Unit（SMU）和AMD Secure Processor（ASP）都是美国超威半导体（AMD）公司的产品。AMD System Management Unit是一个系统管理单元。AMD Secure Processor是一款独立的 ARM Coretex-A5 芯片。 多款AMD产品存在安全漏洞，该漏洞源于其允许攻击者利用竞争条件使用已受损的BIOS实现内存越界读取，从而可能导致拒绝服务。
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 | Ryzen 5000 Series | various | - | |
| AMD | Ryzen 3000 Series | various | - |
II. Public POCs for CVE-2021-46795
| # | POC Description | Source Link | Shenlong Link |
|---|
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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-2021-26407 | AMD Secure Processor 安全特征问题漏洞 | |
| 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-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-2021-46795
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