CVE-2021-46755
Quick assessment
Affected
AMD Ryzen™ 3000 Series Desktop Processors “Matisse” AM4
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和AMD System Management Unit 存在安全漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
Possible ATT&CK Techniques 2 AI
T1499 · Endpoint Denial of Service T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2021-46755
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Failure to unmap certain SysHub mappings in
error paths of the ASP (AMD Secure Processor) bootloader may allow an attacker
with a malicious bootloader to exhaust the SysHub resources resulting in a
potential denial of service.
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和AMD System Management Unit 安全漏洞
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和AMD System Management Unit 存在安全漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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™ 3000 Series Desktop Processors “Matisse” AM4 | various | - |
|
| AMD | AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4 | various | - |
|
| AMD | Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4 | various | - |
|
| AMD | 3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT | various | - |
|
| AMD | Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS | various | - |
|
| AMD | Ryzen™ Threadripper™ PRO Processors “Chagall” WS | various | - |
|
| AMD | Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir” | various | - |
|
| AMD | Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne” | various | - |
|
| AMD | Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne” | various | - |
|
II. Public POCs for CVE-2021-46755
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-46755 (1)
Same Patch Batch · AMD · 2023-05-09 · 26 CVEs total
| CVE-2021-46762 | 3.9 LOW | AMD Secure Processor和AMD System Management Unit 输入验证错误漏洞 |
| CVE-2021-26365 | AMD Secure Processor和AMD System Management Unit 缓冲区错误漏洞 | |
| CVE-2021-26379 | AMD Secure Processor和AMD System Management Unit 安全漏洞 | |
| CVE-2021-26397 | AMD Secure Processor和AMD System Management Unit 安全漏洞 | |
| CVE-2021-46763 | AMD Secure Processor和AMD System Management Unit 缓冲区错误漏洞 | |
| CVE-2021-46764 | AMD Secure Processor和AMD System Management Unit 缓冲区错误漏洞 | |
| CVE-2021-46769 | AMD Secure Processor和AMD System Management Unit 输入验证错误漏洞 | |
| CVE-2021-46775 | AMD Secure Processor和AMD System Management Unit 输入验证错误漏洞 | |
| CVE-2022-23818 | AMD Secure Processor和AMD System Management Unit 输入验证错误漏洞 | |
| CVE-2023-20520 | AMD Secure Processor和AMD System Management Unit 缓冲区错误漏洞 | |
| CVE-2023-20524 | AMD Secure Processor和AMD System Management Unit 缓冲区错误漏洞 | |
| CVE-2021-26354 | AMD Secure Processor和AMD System Management Unit 安全漏洞 | |
| CVE-2021-26356 | AMD Secure Processor和AMD System Management Unit 安全漏洞 | |
| CVE-2021-46794 | AMD Secure Processor和AMD System Management Unit 缓冲区错误漏洞 | |
| CVE-2021-26371 | AMD Secure Processor和AMD System Management Unit 安全漏洞 | |
| CVE-2021-26406 | AMD Secure Encrypted Virtualization 安全漏洞 | |
| CVE-2021-46749 | AMD Secure Processor和AMD System Management Unit 缓冲区错误漏洞 | |
| CVE-2021-46753 | AMD Secure Processor和AMD System Management Unit 安全漏洞 | |
| CVE-2021-46754 | AMD Secure Processor和AMD System Management Unit 输入验证错误漏洞 | |
| CVE-2021-46756 | AMD Secure Processor和AMD System Management Unit 输入验证错误漏洞 |
Showing top 20 of 26 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-46755
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