CVE-2024-21977 (GCVE-0-2024-21977)
Vulnerability from cvelistv5
Published
2025-09-05 12:58
Modified
2025-09-05 13:35
CWE
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.
Impacted products
Vendor Product Version
AMD AMD EPYC™ 7003 Series Processors Create a notification for this product.
   AMD AMD EPYC™ 9004 Series Processors Create a notification for this product.
   AMD AMD EPYC™ 8004 Series Processors Create a notification for this product.
   AMD AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors Create a notification for this product.
   AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics Create a notification for this product.
   AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics Create a notification for this product.
   AMD AMD Ryzen™ 5000 Series Desktop Processors Create a notification for this product.
   AMD AMD Ryzen™ 7000 Series Desktop Processors Create a notification for this product.
   AMD AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics Create a notification for this product.
   AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics Create a notification for this product.
   AMD AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics Create a notification for this product.
   AMD AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors Create a notification for this product.
   AMD AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics Create a notification for this product.
   AMD AMD Ryzen™ 8000 Series Desktop Processors Create a notification for this product.
   AMD AMD EPYC™ Embedded 7003 Series Processors Create a notification for this product.
   AMD AMD EPYC™ Embedded 9004 Series Processors Create a notification for this product.
   AMD AMD Ryzen™ Embedded 8000 Series Processors Create a notification for this product.
   AMD AMD Ryzen™ Embedded 7000 Series Processors Create a notification for this product.
   AMD AMD Ryzen™ Embedded 5000 Series Processors Create a notification for this product.
   AMD AMD Ryzen™ Embedded V3000 Series Processors Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-21977",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-05T13:34:55.383175Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-09-05T13:35:08.152Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "affected",
          "product": "AMD EPYC\u2122 7003 Series Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "MilanPI 1.0.0.D"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD EPYC\u2122 9004 Series Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "GenoaPI 1.0.0.C"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD EPYC\u2122 8004 Series Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "GenoaPI 1.0.0.C"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 5000 WX-Series Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "ChagallWSPI-sWRX8 1.0.0.8"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "CezannePI-FP6_1.0.1.1"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 7035 Series Processors with Radeon\u2122 Graphics",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "RembrandtPI-FP7/FP7r2_1.0.0.B"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 5000 Series Desktop Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "ComboAM4v2 1.2.0.Cb"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 7000 Series Desktop Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "ComboAM5 1.2.0.1"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 7040 Series Mobile Processors with Radeon\u2122 Graphics",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "PhoenixPI-FP8-FP7_1.1.0.3"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 6000 Series Processors with Radeon\u2122 Graphics",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "RembrandtPI-FP7/FP7r2_1.0.0.B"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 7045 Series Mobile Processors with Radeon\u2122 Graphics",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "DragonRangeFL1 1.0.0.3e"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 3000 WX-Series Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "ChagallWSPI-sWRX8 1.0.0.8"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 7030 Series Mobile Processors with Radeon\u2122 Graphics",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "CezannePI-FP6_1.0.1.1"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 8000 Series Desktop Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "ComboAM5 1.2.0.1"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD EPYC\u2122 Embedded 7003 Series Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbMilanPI-SP3 1.0.0.9"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD EPYC\u2122 Embedded 9004 Series Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbGenoaPI-SP5 1.0.0.9"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 Embedded 8000 Series Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbeddedPhoenixPI-FP7r2_1.2.0.0"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 Embedded 7000 Series Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbeddedAM5PI 1.0.0.3"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 Embedded 5000 Series Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbAM4PI 1.0.0.7"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "AMD Ryzen\u2122 Embedded V3000 Series Processors",
          "vendor": "AMD",
          "versions": [
            {
              "status": "unaffected",
              "version": "Embedded-PI_FP7r2 100A"
            }
          ]
        }
      ],
      "datePublic": "2025-09-05T12:37:57.776Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "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.\u003cbr\u003e"
            }
          ],
          "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-459",
              "description": "CWE-459  Incomplete Cleanup",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-05T12:58:39.312Z",
        "orgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
        "shortName": "AMD"
      },
      "references": [
        {
          "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html"
        },
        {
          "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html"
        },
        {
          "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3014.html"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "AMD PSIRT Automation 1.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
    "assignerShortName": "AMD",
    "cveId": "CVE-2024-21977",
    "datePublished": "2025-09-05T12:58:39.312Z",
    "dateReserved": "2024-01-03T16:43:30.196Z",
    "dateUpdated": "2025-09-05T13:35:08.152Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-21977\",\"sourceIdentifier\":\"psirt@amd.com\",\"published\":\"2025-09-05T13:15:31.310\",\"lastModified\":\"2025-09-05T17:47:10.303\",\"vulnStatus\":\"Awaiting Analysis\",\"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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@amd.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N\",\"baseScore\":3.2,\"baseSeverity\":\"LOW\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.5,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"psirt@amd.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-459\"}]}],\"references\":[{\"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\",\"source\":\"psirt@amd.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-21977\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-09-05T13:34:55.383175Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-09-05T13:34:59.694Z\"}}], \"cna\": {\"source\": {\"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 3.2, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"LOW\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"AMD\", \"product\": \"AMD EPYC\\u2122 7003 Series Processors\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"MilanPI 1.0.0.D\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD EPYC\\u2122 9004 Series Processors\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"GenoaPI 1.0.0.C\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD EPYC\\u2122 8004 Series Processors\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"GenoaPI 1.0.0.C\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 Threadripper\\u2122 PRO 5000 WX-Series Processors\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"ChagallWSPI-sWRX8 1.0.0.8\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 5000 Series Mobile Processors with Radeon\\u2122 Graphics\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"CezannePI-FP6_1.0.1.1\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 7035 Series Processors with Radeon\\u2122 Graphics\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"RembrandtPI-FP7/FP7r2_1.0.0.B\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 5000 Series Desktop Processors\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"ComboAM4v2 1.2.0.Cb\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 7000 Series Desktop Processors\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"ComboAM5 1.2.0.1\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 7040 Series Mobile Processors with Radeon\\u2122 Graphics\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"PhoenixPI-FP8-FP7_1.1.0.3\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 6000 Series Processors with Radeon\\u2122 Graphics\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"RembrandtPI-FP7/FP7r2_1.0.0.B\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 7045 Series Mobile Processors with Radeon\\u2122 Graphics\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"DragonRangeFL1 1.0.0.3e\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 Threadripper\\u2122 PRO 3000 WX-Series Processors\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"ChagallWSPI-sWRX8 1.0.0.8\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 7030 Series Mobile Processors with Radeon\\u2122 Graphics\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"CezannePI-FP6_1.0.1.1\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 8000 Series Desktop Processors\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"ComboAM5 1.2.0.1\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD EPYC\\u2122 Embedded 7003 Series Processors\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"EmbMilanPI-SP3 1.0.0.9\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD EPYC\\u2122 Embedded 9004 Series Processors\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"EmbGenoaPI-SP5 1.0.0.9\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 Embedded 8000 Series Processors\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"EmbeddedPhoenixPI-FP7r2_1.2.0.0\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 Embedded 7000 Series Processors\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"EmbeddedAM5PI 1.0.0.3\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 Embedded 5000 Series Processors\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"EmbAM4PI 1.0.0.7\"}], \"defaultStatus\": \"affected\"}, {\"vendor\": \"AMD\", \"product\": \"AMD Ryzen\\u2122 Embedded V3000 Series Processors\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"Embedded-PI_FP7r2 100A\"}], \"defaultStatus\": \"affected\"}], \"datePublic\": \"2025-09-05T12:37:57.776Z\", \"references\": [{\"url\": \"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html\"}, {\"url\": \"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html\"}, {\"url\": \"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3014.html\"}], \"x_generator\": {\"engine\": \"AMD PSIRT Automation 1.0\"}, \"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.\", \"supportingMedia\": [{\"type\": \"text/html\", \"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.\u003cbr\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-459\", \"description\": \"CWE-459  Incomplete Cleanup\"}]}], \"providerMetadata\": {\"orgId\": \"b58fc414-a1e4-4f92-9d70-1add41838648\", \"shortName\": \"AMD\", \"dateUpdated\": \"2025-09-05T12:58:39.312Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-21977\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-09-05T13:35:08.152Z\", \"dateReserved\": \"2024-01-03T16:43:30.196Z\", \"assignerOrgId\": \"b58fc414-a1e4-4f92-9d70-1add41838648\", \"datePublished\": \"2025-09-05T12:58:39.312Z\", \"assignerShortName\": \"AMD\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.


Loading…