{
  "id": "CVE-2021-31616",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-05-06T13:15:12.693",
  "lastModified": "2022-05-03T16:04:40.443",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.1.0 allow a stack buffer overflow via crafted messages. The overflow in ethereum_extractThorchainSwapData() in ethereum.c can circumvent stack protections and lead to code execution. The vulnerable interface is reachable remotely over WebUSB."
    },
    {
      "lang": "es",
      "value": "Unas comprobaciones insuficiente de longitud en el firmware ShapeShift KeepKey versiones anteriores a 7.1.0, permiten un desbordamiento del b\u00fafer de la pila por medio de mensajes dise\u00f1ados. El desbordamiento en la funci\u00f3n ethereum_extractThorchainSwapData() en el archivo ethereum.c puede omitir las protecciones de la pila y conllevar a una ejecuci\u00f3n de c\u00f3digo. La interfaz vulnerable es accesible de forma remota por medio de WebUSB"
    }
  ],
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        "type": "Primary",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH"
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        "exploitabilityScore": 2.8,
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          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
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  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
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          "value": "CWE-787"
        }
      ]
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  "references": [
    {
      "url": "https://blog.inhq.net/posts/keepkey-CVE-2021-31616/",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Patch",
        "Third Party Advisory"
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    },
    {
      "url": "https://github.com/keepkey/keepkey-firmware/commit/e49d45594002d4d3fbc1f03488e6dfc0a0a65836",
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      "url": "https://shapeshift.com/library/keepkey-important-update-issued-april-4-required",
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}