fkie_cve-2021-26387
Vulnerability from fkie_nvd
Published
2024-08-13 17:15
Modified
2024-10-30 18:35
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.
Impacted products
Vendor Product Version



{
  "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."
    }
  ],
  "id": "CVE-2021-26387",
  "lastModified": "2024-10-30T18:35:00.703",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 3.9,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 2.7,
        "source": "psirt@amd.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2024-08-13T17:15:17.563",
  "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": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


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