CVE-2021-38578
Vulnerability from cvelistv5
Published
2022-03-03 21:53
Modified
2024-08-06 00:55
Severity ?
7.4 (High) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L
Summary
Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.
References
infosec@edk2.groups.iohttps://bugzilla.tianocore.org/show_bug.cgi?id=3387Issue Tracking, Vendor Advisory
infosec@edk2.groups.iohttps://www.insyde.com/security-pledge/SA-2023024Third Party Advisory
Impacted products
TianoCoreEDK II
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T01:44:23.499Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.tianocore.org/show_bug.cgi?id=3387"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.insyde.com/security-pledge/SA-2023024"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "EDK II",
          "vendor": "TianoCore",
          "versions": [
            {
              "status": "affected",
              "version": "edk2-stable202208"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eExisting CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.\u003c/p\u003e"
            }
          ],
          "value": "Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-124",
              "description": "A case of CWE-124 is occurring in PiSmmCore.",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-08-06T00:55:57.322Z",
        "orgId": "65518388-201a-4f93-8712-366d21fe8d2c",
        "shortName": "TianoCore"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.tianocore.org/show_bug.cgi?id=3387"
        },
        {
          "url": "https://www.insyde.com/security-pledge/SA-2023024"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "65518388-201a-4f93-8712-366d21fe8d2c",
    "assignerShortName": "TianoCore",
    "cveId": "CVE-2021-38578",
    "datePublished": "2022-03-03T21:53:37",
    "dateReserved": "2021-08-11T00:00:00",
    "dateUpdated": "2024-08-06T00:55:57.322Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-38578\",\"sourceIdentifier\":\"infosec@edk2.groups.io\",\"published\":\"2022-03-03T22:15:08.423\",\"lastModified\":\"2024-08-06T01:15:43.310\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.\"},{\"lang\":\"es\",\"value\":\"Unas comprobaciones existentes de CommBuffer en SmmEntryPoint no detectan el desbordamiento cuando es calculado BufferSize\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9},{\"source\":\"infosec@edk2.groups.io\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"LOW\",\"baseScore\":7.4,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":0.8,\"impactScore\":6.0}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:P/A:P\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\",\"baseScore\":7.5},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]},{\"source\":\"infosec@edk2.groups.io\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-124\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:tianocore:edk2:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"202202\",\"matchCriteriaId\":\"A2B1E98B-2D63-42E3-B6F8-139CC32BA4B0\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:insyde:kernel:5.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FFCC4619-B867-4E23-AF05-FF92B43628AF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:insyde:kernel:5.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FB40061A-BEDF-4D72-BF2D-D1B10EB80A60\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:insyde:kernel:5.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9D6AFE61-A2A4-49DF-A8EE-B2F425DA7A08\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:insyde:kernel:5.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D21132C0-F2CF-4134-A165-926155031913\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:insyde:kernel:5.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6549F7F1-A438-4C84-9D66-C89C697E2A9B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:insyde:kernel:5.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DE339FA1-8572-4365-B420-530D62686C08\"}]}]}],\"references\":[{\"url\":\"https://bugzilla.tianocore.org/show_bug.cgi?id=3387\",\"source\":\"infosec@edk2.groups.io\",\"tags\":[\"Issue Tracking\",\"Vendor Advisory\"]},{\"url\":\"https://www.insyde.com/security-pledge/SA-2023024\",\"source\":\"infosec@edk2.groups.io\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.