cve-2023-20518
Vulnerability from cvelistv5
Published
2024-08-13 16:52
Modified
2024-11-05 17:10
Severity ?
EPSS score ?
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
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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\",\"baseScore\":1.9,\"baseSeverity\":\"LOW\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"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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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.