{
  "id": "CVE-2021-29415",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-05-21T12:15:07.953",
  "lastModified": "2022-07-12T17:42:04.277",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "The elliptic curve cryptography (ECC) hardware accelerator, part of the ARM\u00ae TrustZone\u00ae CryptoCell 310, contained in the NordicSemiconductor nRF52840 through 2021-03-29 has a non-constant time ECDSA implemenation. This allows an adversary to recover the private ECC key used during an ECDSA operation."
    },
    {
      "lang": "es",
      "value": "El acelerador de hardware elliptic curve cryptography (ECC), parte del ARM\u00ae TrustZone\u00ae CryptoCell 310, contenido en NordicSemiconductor nRF52840 hasta el 2021-03-29 presenta una implementaci\u00f3n ECDSA de tiempo no constante. Esto permite que un adversario recupere la clave ECC privada utilizada durante una operaci\u00f3n ECDSA"
    }
  ],
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          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM"
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          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
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        "baseSeverity": "LOW",
        "exploitabilityScore": 3.9,
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        "obtainAllPrivilege": false,
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        "obtainOtherPrivilege": false,
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      "type": "Primary",
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          "value": "CWE-203"
        }
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  "references": [
    {
      "url": "https://eprint.iacr.org/2021/640",
      "source": "cve@mitre.org",
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      "url": "https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html",
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}