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CVE-2024-21978

Quick assessment

Affected
AMD 3rd Gen AMD EPYC™ Processors
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

AMD SEV-SNP是美国超威半导体（AMD）公司的一个安全加密虚拟化固件。使用单个密钥来加密系统内存。 AMD SEV-SNP存在安全漏洞，该漏洞源于不正确的输入验证允许恶意管理程序读取或覆盖客户内存，从而导致数据泄漏或数据损坏。

CVSS 6.0 · Medium EPSS 0.49% · P40

Possible ATT&CK Techniques 2 AI

T1044 T1056.004 · Credential API Hooking
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I. Basic Information for CVE-2024-21978

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Improper input validation in SEV-SNP could allow a malicious hypervisor to read or overwrite guest memory potentially leading to data leakage or data corruption.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
AMD SEV-SNP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AMD SEV-SNP是美国超威半导体（AMD）公司的一个安全加密虚拟化固件。使用单个密钥来加密系统内存。 AMD SEV-SNP存在安全漏洞，该漏洞源于不正确的输入验证允许恶意管理程序读取或覆盖客户内存，从而导致数据泄漏或数据损坏。
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 ~ MilanPI 1.0.0.D -
AMD 4th Gen AMD EPYC™ Processors various ~ GenoaPI 1.0.0.C -
AMD AMD EPYC™ Embedded 7003 various ~ EmbMilanPI-SP3 1.0.0.9 -
AMD AMD EPYC™ Embedded 9003 various ~ EmbGenoaPI-SP5 1.0.0.7 -

II. Public POCs for CVE-2024-21978

# POC Description Source Link Shenlong Link
1 None https://github.com/Freax13/cve-2024-21978-poc POC Details
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III. Intelligence Information for CVE-2024-21978

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Other References for CVE-2024-21978 (1)

Same Patch Batch · AMD · 2024-08-05 · 3 CVEs total

CVE-2024-21980 7.9 HIGH AMD SEV-SNP 安全漏洞
CVE-2023-31355 6.0 MEDIUM AMD SEV-SNP 安全漏洞

IV. Related Vulnerabilities

Same product: 3rd Gen AMD EPYC™ Processors
Same vendor: AMD
Same weakness: CWE-20

V. Comments for CVE-2024-21978

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