cve-2021-26387
Vulnerability from cvelistv5
Published
2024-08-13 16:50
Modified
2024-10-30 17:59
Severity ?
EPSS score ?
Summary
Insufficient access controls in ASP kernel may allow a
privileged attacker with access to AMD signing keys and the BIOS menu or UEFI
shell to map DRAM regions in protected areas, potentially leading to a loss of platform integrity.
References
Impacted products
{
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"options": [
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"url": "https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html"
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"nvd": "{\"cve\":{\"id\":\"CVE-2021-26387\",\"sourceIdentifier\":\"psirt@amd.com\",\"published\":\"2024-08-13T17:15:17.563\",\"lastModified\":\"2024-10-30T18:35:00.703\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Insufficient access controls in ASP kernel may allow a\\nprivileged attacker with access to AMD signing keys and the BIOS menu or UEFI\\nshell to map DRAM regions in protected areas,\u00a0potentially leading to a loss of platform integrity.\"},{\"lang\":\"es\",\"value\":\"Los controles de acceso insuficientes en el kernel ASP pueden permitir que un atacante privilegiado con acceso a las claves de firma de AMD y al men\u00fa BIOS o al shell UEFI asigne regiones DRAM en \u00e1reas protegidas, lo que podr\u00eda provocar una p\u00e9rdida de integridad de la plataforma.\"}],\"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:C/C:N/I:L/A:L\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\",\"baseScore\":3.9,\"baseSeverity\":\"LOW\"},\"exploitabilityScore\":0.8,\"impactScore\":2.7}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-863\"}]}],\"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.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- 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.