github - ghsa-mxm2-jrgh-833g

GHSA-MXM2-JRGH-833G

Vulnerability from github – Published: 2022-05-24 19:20 – Updated: 2022-05-24 19:20

Details

A potential vulnerability in the SMI callback function used in CSME configuration of some Lenovo Notebook and ThinkPad systems could be used to leak out data out of the SMRAM range.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-3786"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-11-12T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A potential vulnerability in the SMI callback function used in CSME configuration of some Lenovo Notebook and ThinkPad systems could be used to leak out data out of the SMRAM range. ",
  "id": "GHSA-mxm2-jrgh-833g",
  "modified": "2022-05-24T19:20:29Z",
  "published": "2022-05-24T19:20:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3786"
    },
    {
      "type": "WEB",
      "url": "https://support.lenovo.com/us/en/product_security/LEN-67440"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2021-3786 (GCVE-0-2021-3786)

Vulnerability from cvelistv5 – Published: 2021-11-12 22:05 – Updated: 2024-08-03 17:09

Summary

A potential vulnerability in the SMI callback function used in CSME configuration of some Lenovo Notebook and ThinkPad systems could be used to leak out data out of the SMRAM range.

Severity ?

4.4 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-20 - Improper Input Validation

Assigner

lenovo

References

URL

Tags

https://support.lenovo.com/us/en/product_security…

x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Lenovo	Notebook and ThinkPad BIOS	Affected: various

Credits

Lenovo thanks Itai Liba and Assaf Carlsbad from SentinelOne for reporting these issues.

Show details on NVD website

JSON

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  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:09:08.738Z",
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        "references": [
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              "x_transferred"
            ],
            "url": "https://support.lenovo.com/us/en/product_security/LEN-67440"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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        {
          "product": "Notebook and ThinkPad BIOS",
          "vendor": "Lenovo",
          "versions": [
            {
              "status": "affected",
              "version": "various"
            }
          ]
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      ],
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          "lang": "en",
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      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
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      "references": [
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          "url": "https://support.lenovo.com/us/en/product_security/LEN-67440"
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-MXM2-JRGH-833G

CVE-2021-3786 (GCVE-0-2021-3786)

Tags

Sightings

Nomenclature