FKIE_CVE-2020-5956

Vulnerability from fkie_nvd - Published: 2022-01-05 23:15 - Updated: 2024-11-21 05:34
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
An issue was discovered in SdLegacySmm in Insyde InsydeH2O with kernel 5.1 before 05.15.11, 5.2 before 05.25.11, 5.3 before 05.34.11, and 5.4 before 05.42.11. The software SMI handler allows untrusted external input because it does not verify CommBuffer.
References
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20220223-0001/Third Party Advisory
cve@mitre.orghttps://www.insyde.com/security-pledgeVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20220223-0001/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.insyde.com/security-pledgeVendor Advisory
Impacted products
Vendor Product Version
insyde insydeh2o *
insyde insydeh2o *
insyde insydeh2o *
insyde insydeh2o *
To clipboard 

{
  "configurations": [
    {
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              "versionEndExcluding": "5.25.11",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in SdLegacySmm in Insyde InsydeH2O with kernel 5.1 before 05.15.11, 5.2 before 05.25.11, 5.3 before 05.34.11, and 5.4 before 05.42.11. The software SMI handler allows untrusted external input because it does not verify CommBuffer."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en SdLegacySmm en InsydeH2O con el kernel 5.1 anteriores a 05.15.11, 5.2 anteriores a 05.25.11, 5.3 anteriores a 05.34.11 y 5.4 anteriores a 05.42.11. El manejador SMI de software permite una entrada externa no confiable porque no verifica el CommBuffer."
    }
  ],
  "id": "CVE-2020-5956",
  "lastModified": "2024-11-21T05:34:53.930",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "version": "2.0"
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        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
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        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-01-05T23:15:07.920",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
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      ],
      "url": "https://security.netapp.com/advisory/ntap-20220223-0001/"
    },
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-20"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.