fkie_cve-2019-18222
Vulnerability from fkie_nvd
Published
2020-01-23 17:15
Modified
2024-11-21 04:32
Summary
The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks.
Impacted products



{
  "configurations": [
    {
      "nodes": [
        {
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              "matchCriteriaId": "6EB99EE1-CF15-4B12-A7B7-962049FF7C40",
              "versionEndExcluding": "3.0.0",
              "vulnerable": true
            },
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              "criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9AFF019B-BEED-4005-B3F8-2495D1226C68",
              "versionEndExcluding": "2.7.13",
              "vulnerable": true
            },
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              "criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "416475AF-9BFC-4B4E-812E-0BCEC891960C",
              "versionEndExcluding": "2.16.4",
              "versionStartIncluding": "2.8.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "537293B6-FD8D-4CE1-9D99-A4BE5B8F0D9F",
              "versionEndExcluding": "2.20.0",
              "versionStartIncluding": "2.17.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
              "matchCriteriaId": "97A4B8DF-58DA-4AB6-A1F9-331B36409BA3",
              "vulnerable": true
            },
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              "criteria": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
              "matchCriteriaId": "80F0FA5D-8D3B-4C0E-81E2-87998286AF33",
              "vulnerable": true
            }
          ],
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          "operator": "OR"
        }
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    },
    {
      "nodes": [
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              "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
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              "vulnerable": true
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks."
    },
    {
      "lang": "es",
      "value": "La implementaci\u00f3n de la firma ECDSA en el archivo ecdsa.c en Arm Mbed Crypto versi\u00f3n 2.1 y Mbed TLS versiones hasta 2.19.1, no reduce el escalar ciego antes de calcular el inverso, lo que permite a un atacante local recuperar la clave privada por medio de ataques de canal lateral."
    }
  ],
  "id": "CVE-2019-18222",
  "lastModified": "2024-11-21T04:32:52.030",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 1.9,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:M/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 3.4,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-01-23T17:15:11.893",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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        "Third Party Advisory"
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      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3GWQNONS7GRORXZJ7MOJFUEJ2ZJ4OUW/"
    },
    {
      "source": "cve@mitre.org",
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      ],
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    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      "url": "https://tls.mbed.org/tech-updates/security-advisories"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      "url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-12"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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    },
    {
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      "tags": [
        "Mailing List",
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      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3GWQNONS7GRORXZJ7MOJFUEJ2ZJ4OUW/"
    },
    {
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-12"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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