fkie_cve-2024-21977
Vulnerability from fkie_nvd
Published
2025-09-05 13:15
Modified
2025-09-05 17:47
Severity ?
3.2 (Low) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N
Summary
Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests.
References
psirt@amd.comhttps://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3014.html
psirt@amd.comhttps://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html
psirt@amd.comhttps://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests."
    }
  ],
  "id": "CVE-2024-21977",
  "lastModified": "2025-09-05T17:47:10.303",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 3.2,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.5,
        "impactScore": 1.4,
        "source": "psirt@amd.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-09-05T13:15:31.310",
  "references": [
    {
      "source": "psirt@amd.com",
      "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3014.html"
    },
    {
      "source": "psirt@amd.com",
      "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html"
    },
    {
      "source": "psirt@amd.com",
      "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html"
    }
  ],
  "sourceIdentifier": "psirt@amd.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-459"
        }
      ],
      "source": "psirt@amd.com",
      "type": "Secondary"
    }
  ]
}


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