CVE-2023-20526
Quick assessment
Affected
AMD AMD Ryzen™ Threadripper™ 2000 Series Processors “Colfax”
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 EPYC是美国超威半导体（AMD）公司的一款x86架构服务器微处理器产品线，中文名为“霄龙”，采用Zen微架构。 AMD EPYC 存在安全漏洞，该漏洞源于 ASP 引导加载程序中的输入验证不充分可能会使具有物理访问权限的特权攻击者暴露 ASP 内存的内容，从而可能导致机密性丢失。
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I. Basic Information for CVE-2023-20526
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient input validation in the ASP Bootloader may enable a privileged attacker with physical access to expose the contents of ASP memory potentially leading to a loss of confidentiality.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
AMD EPYC 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AMD EPYC是美国超威半导体（AMD）公司的一款x86架构服务器微处理器产品线，中文名为“霄龙”，采用Zen微架构。 AMD EPYC 存在安全漏洞，该漏洞源于 ASP 引导加载程序中的输入验证不充分可能会使具有物理访问权限的特权攻击者暴露 ASP 内存的内容，从而可能导致机密性丢失。
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 | AMD Ryzen™ Threadripper™ 2000 Series Processors “Colfax” | various | - |
|
| AMD | 1st Gen AMD EPYC™ Processors | various | - |
|
| AMD | 2nd Gen AMD EPYC™ Processors | various | - |
|
| AMD | 3rd Gen AMD EPYC™ Processors | various | - |
|
| AMD | AMD EPYC™ Embedded 3000 | various | - |
|
| AMD | AMD EPYC™ Embedded 7002 | various | - |
|
| AMD | AMD EPYC™ Embedded 7003 | various | - |
|
II. Public POCs for CVE-2023-20526
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2023-20526 (3)
Same Patch Batch · AMD · 2023-11-14 · 20 CVEs total
| CVE-2022-23820 | 7.5 HIGH | AMD EPYC 安全漏洞 |
| CVE-2021-46774 | 6.7 MEDIUM | AMD EPYC 安全漏洞 |
| CVE-2023-20533 | 6.1 MEDIUM | AMD EPYC 安全漏洞 |
| CVE-2023-20566 | 5.3 MEDIUM | AMD EPYC 安全漏洞 |
| CVE-2023-20521 | 3.3 LOW | AMD EPYC 安全漏洞 |
| CVE-2021-46766 | 2.5 LOW | AMD EPYC 安全漏洞 |
| CVE-2022-23830 | 1.9 LOW | AMD EPYC 安全漏洞 |
| CVE-2021-26345 | 1.9 LOW | AMD EPYC 缓冲区错误漏洞 |
| CVE-2021-46748 | AMD Secure Processor 安全漏洞 | |
| CVE-2023-20596 | AMD Ryzen 安全漏洞 | |
| CVE-2023-20567 | AMD Graphics Driver 安全漏洞 | |
| CVE-2023-20568 | AMD Graphics Driver 安全漏洞 | |
| CVE-2023-20519 | AMD EPYC 资源管理错误漏洞 | |
| CVE-2023-20592 | AMD CPU 安全漏洞 | |
| CVE-2021-46758 | AMD Secure Processor 安全漏洞 | |
| CVE-2022-23821 | AMD System Management Mode 安全漏洞 | |
| CVE-2023-20563 | AMD CPU 安全漏洞 | |
| CVE-2023-20565 | AMD CPU 安全漏洞 | |
| CVE-2023-20571 | AMD CPU 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2023-20526
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