CVE-2021-26347
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I. Basic Information for CVE-2021-26347
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential 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
AMD System Management Unit 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AMD System Management Unit（SMU）是美国超威半导体（AMD）公司的一个系统管理单元。 AMD System Management Unit存在安全漏洞，该漏洞源于System Management Unit (SMU)的TOCTOU会导致对无效DRAM地址的DMA（直接内存访问），从而导致拒绝服务。
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 | - |
II. Public POCs for CVE-2021-26347
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · AMD · 2022-05-11 · 15 CVEs total
| CVE-2021-46744 | AMD CPUs 加密问题漏洞 | |
| CVE-2021-26400 | AMD processors 安全漏洞 | |
| CVE-2021-26388 | AMD BIOS 缓冲区错误漏洞 | |
| CVE-2021-26376 | AMD System Management Unit 输入验证错误漏洞 | |
| CVE-2021-26373 | AMD System Management Unit 输入验证错误漏洞 | |
| CVE-2021-26348 | AMD Processors 安全漏洞 | |
| CVE-2021-26364 | AMD CPUs缓冲区错误漏洞 | |
| CVE-2021-26349 | AMD Processors 安全漏洞 | |
| CVE-2021-26378 | AMD System Management Unit 缓冲区错误漏洞 | |
| CVE-2021-26342 | AMD CPUs 安全漏洞 | |
| CVE-2021-26375 | AMD System Management Unit 缓冲区错误漏洞 | |
| CVE-2021-26372 | AMD System Management Unit 缓冲区错误漏洞 | |
| CVE-2021-26339 | AMD CPUs 安全漏洞 | |
| CVE-2021-26350 | AMD System Management Unit 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-26347
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