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CVE-2023-20576

Quick assessment

Affected
AMD AMD Ryzen™ 3000 Series Desktop 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™ Processors存在安全漏洞，该漏洞源于AGESA中数据真实性验证不足，从而导致拒绝服务或权限升级。

CVSS 7.7 · High

Possible ATT&CK Techniques 1 AI

T1542.001 · System Firmware

Affected Version Matrix 13

VendorProduct Version RangeStatus
AMD AMD Ryzen™ 3000 Series Desktop Processors ComboAM4v2 1.2.0.B unaffected
AMD AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics ComboAM4v2 1.2.0.B unaffected
AMD AMD Ryzen™ 5000 Series Desktop Processors ComboAM4v2v 1.2.0.B unaffected
AMD AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics ComboAM4v2 1.2.0.B unaffected
AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics RembrandtPI-FP7 1.0.0.9b unaffected
AMD AMD Ryzen™ 7000 Series Processors ComboAM5 1.0.0.7b unaffected
AMD AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics MendocinoPI-FT6 1.0.0.6 unaffected
AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics RembrandtPI-FP7 1.0.0.9b unaffected
AMD AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics PhoenixPI-FP8-FP7 1.0.0.2 unaffected
AMD AMD Ryzen™ 7045 Series Mobile Processors DragonRangeFL1PI 1.0.0.3a unaffected
AMD AMD Ryzen™ Embedded 5000 EmbAM4PI 1.0.0.4 unaffected
AMD AMD Ryzen™ Embedded V3000 EmbeddedPI-FP7r2 1.0.0.8 unaffected
AMD AMD Ryzen™ Threadripper™ PRO 5000WX Processors ChagallWSPI-sWRX8 1.0.0.7 unaffected
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I. Basic Information for CVE-2023-20576

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient Verification of Data Authenticity in AGESA™ may allow an attacker to update SPI ROM data potentially resulting in denial of service or privilege escalation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
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™ Processors存在安全漏洞，该漏洞源于AGESA中数据真实性验证不足，从而导致拒绝服务或权限升级。
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™ 3000 Series Desktop Processors ComboAM4v2 1.2.0.B -
AMD AMD Ryzen™ 5000 Series Desktop Processors ComboAM4v2v 1.2.0.B -
AMD AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics ComboAM4v2 1.2.0.B -
AMD AMD Ryzen™ 7000 Series Processors ComboAM5 1.0.0.7b -
AMD AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics ComboAM4v2 1.2.0.B -
AMD AMD Ryzen™ Threadripper™ PRO 5000WX Processors ChagallWSPI-sWRX8 1.0.0.7 -
AMD AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics MendocinoPI-FT6 1.0.0.6 -
AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics RembrandtPI-FP7 1.0.0.9b -
AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics RembrandtPI-FP7 1.0.0.9b -
AMD AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics PhoenixPI-FP8-FP7 1.0.0.2 -
AMD AMD Ryzen™ 7045 Series Mobile Processors DragonRangeFL1PI 1.0.0.3a -
AMD AMD Ryzen™ Embedded 5000 EmbAM4PI 1.0.0.4 -
AMD AMD Ryzen™ Embedded V3000 EmbeddedPI-FP7r2 1.0.0.8 -

II. Public POCs for CVE-2023-20576

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III. Intelligence Information for CVE-2023-20576

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Vendor Advisories for CVE-2023-20576 (1)

IV. Related Vulnerabilities

Same product: AMD Ryzen™ 3000 Series Desktop Processors
Same vendor: AMD
Same weakness: CWE-345

V. Comments for CVE-2023-20576

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