CVE-2023-20518
Vulnerability from cvelistv5
Published
2024-08-13 16:52
Modified
2024-11-05 17:10
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.
Impacted products
AMDAMD EPYC™ 9004 Series Processors
AMDAMD Ryzen™ 3000 Series Desktop Processors
AMDAMD Ryzen™ 5000 Series Desktop Processors
AMDAMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics
AMDAMD Ryzen™ 7000 Series Desktop Processors
AMDAMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics
AMDAMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics
AMDAMD Ryzen™ Threadripper™ 3000 Series Processors
AMDAMD Ryzen™ Threadripper™ PRO 3000WX Series Processors
AMDAMD Ryzen™ Threadripper™ PRO 5000WX Processors
AMDAMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics
AMDAMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics
AMDAMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics
AMDAMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics
AMDAMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics
AMDAMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics
AMDAMD Ryzen™ 7020 Series Processors with Radeon™ Graphics
AMDAMD Ryzen™ 6000 Series Processors with Radeon™ Graphics
AMDAMD Ryzen™ 7035 Series Processors with Radeon™ Graphics
AMDAMD Ryzen™ 5000 Series Processors with Radeon™ Graphics
AMDAMD Ryzen™ 3000 Series Processors with Radeon™ Graphics
AMDAMD Ryzen™ Embedded R1000 Series Processors
AMDAMD Ryzen™ Embedded R2000 Series Processors
AMDAMD Ryzen™ Embedded 5000 Series Processors
AMDAMD Ryzen™ Embedded 7000 Series Processors
AMDAMD Ryzen™ Embedded V1000 Series Processors
AMDAMD Ryzen™ Embedded V2000 Series Processors
AMDAMD Ryzen™ Embedded V3000 Series Processors
Show details on NVD website


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        "metrics": [
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              "content": {
                "id": "CVE-2023-20518",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-08-15T14:20:09.090291Z",
                "version": "2.0.3"
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        "problemTypes": [
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                "description": "CWE-459 Incomplete Cleanup",
                "lang": "en",
                "type": "CWE"
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        "providerMetadata": {
          "dateUpdated": "2024-11-05T17:10:30.170Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    ],
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              "version": "ChagallWSPI-sWRX8  1.0.0.6"
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              "status": "unaffected",
              "version": "EmbeddedAM5PI  1.0.0.0"
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    "datePublished": "2024-08-13T16:52:55.976Z",
    "dateReserved": "2022-10-27T18:53:39.736Z",
    "dateUpdated": "2024-11-05T17:10:30.170Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2023-20518\",\"sourceIdentifier\":\"psirt@amd.com\",\"published\":\"2024-08-13T17:15:19.330\",\"lastModified\":\"2024-11-05T17:35:02.627\",\"vulnStatus\":\"Awaiting Analysis\",\"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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@amd.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":1.9,\"baseSeverity\":\"LOW\"},\"exploitabilityScore\":0.5,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-459\"}]}],\"references\":[{\"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\",\"source\":\"psirt@amd.com\"}]}}"
  }
}


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