github - ghsa-937r-586h-vgqf

ghsa-937r-586h-vgqf

Vulnerability from github

Published

2022-04-23 00:03

Modified

2022-05-12 00:00

Severity ?

6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Details

A potential vulnerability in the SMI callback function used in the Legacy BIOS mode driver in some Lenovo Notebook models may allow an attacker with local access and elevated privileges to execute arbitrary code.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-4212"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-04-22T21:15:00Z",
    "severity": "HIGH"
  },
  "details": "A potential vulnerability in the SMI callback function used in the Legacy BIOS mode driver in some Lenovo Notebook models may allow an attacker with local access and elevated privileges to execute arbitrary code.",
  "id": "GHSA-937r-586h-vgqf",
  "modified": "2022-05-12T00:00:32Z",
  "published": "2022-04-23T00:03:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4212"
    },
    {
      "type": "WEB",
      "url": "https://support.lenovo.com/us/en/product_security/LEN-77639"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2021-4212

Vulnerability from cvelistv5

Published

2022-04-22 20:30

Modified

2024-08-03 17:16

Severity ?

6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Summary

References

▼	URL	Tags
	https://support.lenovo.com/us/en/product_security/LEN-77639	x_refsource_MISC

Impacted products

▼	Vendor	Product
	Lenovo	BIOS

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:16:04.273Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support.lenovo.com/us/en/product_security/LEN-77639"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "BIOS",
          "vendor": "Lenovo",
          "versions": [
            {
              "status": "affected",
              "version": "various"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Lenovo thanks Jiawei Yin(@yngweijw) and Menghao Li of IIE varas"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A potential vulnerability in the SMI callback function used in the Legacy BIOS mode driver in some Lenovo Notebook models may allow an attacker with local access and elevated privileges to execute arbitrary code."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20 Improper Input Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-04-22T20:30:44",
        "orgId": "da227ddf-6e25-4b41-b023-0f976dcaca4b",
        "shortName": "lenovo"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://support.lenovo.com/us/en/product_security/LEN-77639"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Update system firmware to the version (or newer) indicated for your model in the Product Impact section in LEN-77639."
        }
      ],
      "source": {
        "advisory": "LEN-77639",
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@lenovo.com",
          "ID": "CVE-2021-4212",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "BIOS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "=",
                            "version_value": "various"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Lenovo"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Lenovo thanks Jiawei Yin(@yngweijw) and Menghao Li of IIE varas"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A potential vulnerability in the SMI callback function used in the Legacy BIOS mode driver in some Lenovo Notebook models may allow an attacker with local access and elevated privileges to execute arbitrary code."
            }
          ]
        },
        "generator": {
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        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-20 Improper Input Validation"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://support.lenovo.com/us/en/product_security/LEN-77639",
              "refsource": "MISC",
              "url": "https://support.lenovo.com/us/en/product_security/LEN-77639"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "Update system firmware to the version (or newer) indicated for your model in the Product Impact section in LEN-77639."
          }
        ],
        "source": {
          "advisory": "LEN-77639",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "da227ddf-6e25-4b41-b023-0f976dcaca4b",
    "assignerShortName": "lenovo",
    "cveId": "CVE-2021-4212",
    "datePublished": "2022-04-22T20:30:44",
    "dateReserved": "2022-01-24T00:00:00",
    "dateUpdated": "2024-08-03T17:16:04.273Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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