CVE-2021-33627 (GCVE-0-2021-33627)
Vulnerability from cvelistv5
Published
2022-02-03 01:30
Modified
2025-11-04 19:12
Severity ?
CWE
  • n/a
Summary
An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.09.11, 5.1 before 05.17.11, 5.2 before 05.27.11, 5.3 before 05.36.11, 5.4 before 05.44.11, and 5.5 before 05.52.11 affecting FwBlockServiceSmm. Software SMI services that use the Communicate() function of the EFI_SMM_COMMUNICATION_PROTOCOL do not check whether the address of the buffer is valid, which allows use of SMRAM, MMIO, or OS kernel addresses.
References
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

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    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2025-11-04T19:12:32.043Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.insyde.com/security-pledge"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.insyde.com/security-pledge/SA-2022022"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20220222-0002/"
          },
          {
            "url": "https://www.kb.cert.org/vuls/id/796611"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.09.11, 5.1 before 05.17.11, 5.2 before 05.27.11, 5.3 before 05.36.11, 5.4 before 05.44.11, and 5.5 before 05.52.11 affecting FwBlockServiceSmm. Software SMI services that use the Communicate() function of the EFI_SMM_COMMUNICATION_PROTOCOL do not check whether the address of the buffer is valid, which allows use of SMRAM, MMIO, or OS kernel addresses."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
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              "lang": "en",
              "type": "text"
            }
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      "providerMetadata": {
        "dateUpdated": "2024-07-22T16:50:10.835Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://www.insyde.com/security-pledge"
        },
        {
          "url": "https://www.insyde.com/security-pledge/SA-2022022"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20220222-0002/"
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-33627",
    "datePublished": "2022-02-03T01:30:36.000Z",
    "dateReserved": "2021-05-28T00:00:00.000Z",
    "dateUpdated": "2025-11-04T19:12:32.043Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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