FKIE_CVE-2023-20518
Vulnerability from fkie_nvd - Published: 2024-08-13 17:15 - Updated: 2026-06-17 05:30
Severity
Summary
Incomplete cleanup in the ASP may expose the Master Encryption Key (MEK) to a privileged attacker with access to the BIOS menu or UEFI shell and a memory exfiltration vulnerability, potentially resulting in loss of confidentiality.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 9004 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "GenoaPI 1.0.0.4",
"versionType": "PI"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 3000 Series Desktop Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4V1 1.0.0.A"
},
{
"status": "unaffected",
"version": "ComboAM4V2 1.2.0.A"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Desktop Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4V2 1.2.0.A"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Desktop Processor with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4V2 1.2.0.A"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 7000 Series Desktop Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM5 1.0.0.6"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Athlon\u2122 3000 Series Desktop Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4V2 1.2.0.A"
},
{
"status": "unaffected",
"version": "ComboAM4V1 1.0.0.A"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 4000 Series Desktop Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ComboAM4V2 1.2.0.A"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Threadripper\u2122 3000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "CastlePeakPI-SP3r3 1.0.0.9"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 3000WX Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ChagallWSPI-sWRX8 1.0.0.6"
},
{
"status": "unaffected",
"version": "CastlePeakWSPI-sWRX8 1.0.0.B"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 5000WX Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ChagallWSPI-sWRX8 1.0.0.6"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Athlon\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "PicassoPI-FP5 1.0.0.F"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Athlon\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "PollockPI-FT5 1.0.0.5"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 3000 Series Mobile Processor with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "PicassoPI-FP5 1.0.0.F"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 4000 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "RenoirPI-FP6 1.0.0.C"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6 1.0.0.E"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6 1.0.0.E"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 7020 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "MendocinoPI-FT6 1.0.0.4"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 6000 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "RembrandtPI-FP7 1.0.0.8"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 7035 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "RembrandtPI-FP7 1.0.0.8"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 5000 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6 1.0.0.E"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 3000 Series Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "CezannePI-FP6 1.0.0.E"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded R1000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP5 1.2.0.A"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded R2000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedR2KPI-FP5 1.0.0.2"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded 5000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbAM4PI 1.0.0.3"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded 7000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedAM5PI 1.0.0.0"
}
]
},
{
"defaultStatus": "unaffected",
"product": "AMD Ryzen\u2122 Embedded V1000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "affected",
"version": "various"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded V2000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP6 1.0.0.8"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded V3000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP7r2 1.0.0.5"
}
]
}
],
"source": "psirt@amd.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Incomplete cleanup in the ASP may expose the Master Encryption Key (MEK) to a privileged attacker with access to the BIOS menu or UEFI shell and a memory exfiltration vulnerability, potentially resulting in loss of confidentiality."
},
{
"lang": "es",
"value": "Una limpieza incompleta en la ASP puede exponer la clave de cifrado maestra (MEK) a un atacante privilegiado con acceso al men\u00fa del BIOS o al shell UEFI y una vulnerabilidad de filtraci\u00f3n de memoria, lo que podr\u00eda provocar una p\u00e9rdida de confidencialidad."
}
],
"id": "CVE-2023-20518",
"lastModified": "2026-06-17T05:30:14.657",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 1.9,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 0.5,
"impactScore": 1.4,
"source": "psirt@amd.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-20518",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-08-15T14:20:09.090291Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-08-13T17:15:19.330",
"references": [
{
"source": "psirt@amd.com",
"url": "https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html"
},
{
"source": "psirt@amd.com",
"url": "https://www.amd.com/en/resources/product-security/bulletin/amd-sb-5002.html"
}
],
"sourceIdentifier": "psirt@amd.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-459"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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Sightings
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Nomenclature
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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