CVE-2023-20519
Quick assessment
Affected
AMD 3rd Gen AMD EPYC™ Processors
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 SNP 客户机环境页面管理中的释放后重用漏洞，可能允许恶意管理程序伪装成客户机的迁移代理，从而导致客户机完整性损失。
Possible ATT&CK Techniques 1 AI
T1498 · Network Denial of Service
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I. Basic Information for CVE-2023-20519
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A Use-After-Free vulnerability in the management of an SNP guest context page may allow a malicious hypervisor to masquerade as the guest's migration agent resulting in a potential loss of guest integrity.
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 EPYC 资源管理错误漏洞
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 SNP 客户机环境页面管理中的释放后重用漏洞，可能允许恶意管理程序伪装成客户机的迁移代理，从而导致客户机完整性损失。
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 | 3rd Gen AMD EPYC™ Processors | various | - |
|
| AMD | 4th Gen AMD EPYC™ Processors | various | - |
|
II. Public POCs for CVE-2023-20519
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2023-20519 (1)
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-2023-20526 | 1.9 LOW | AMD EPYC 安全漏洞 |
| 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-2023-20592 | 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-2023-20519
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