FKIE_CVE-2019-13629

Vulnerability from fkie_nvd - Published: 2019-10-03 14:15 - Updated: 2024-11-21 04:25
Severity ?
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
MatrixSSL 4.2.1 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or a remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because crypto/pubkey/ecc_math.c scalar multiplication leaks the bit length of the scalar.
References
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2019/10/02/2Mailing List, Third Party Advisory
cve@mitre.orghttps://eprint.iacr.org/2011/232.pdfNot Applicable
cve@mitre.orghttps://minerva.crocs.fi.muni.cz/Product
cve@mitre.orghttps://tches.iacr.org/index.php/TCHES/article/view/7337Not Applicable
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2019/10/02/2Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://eprint.iacr.org/2011/232.pdfNot Applicable
af854a3a-2127-422b-91ae-364da2661108https://minerva.crocs.fi.muni.cz/Product
af854a3a-2127-422b-91ae-364da2661108https://tches.iacr.org/index.php/TCHES/article/view/7337Not Applicable
Impacted products
Vendor Product Version
matrixssl matrixssl *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "83C90122-07C8-4F04-A5E1-7B96417BFB7E",
              "versionEndIncluding": "4.2.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "MatrixSSL 4.2.1 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or a remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because crypto/pubkey/ecc_math.c scalar multiplication leaks the bit length of the scalar."
    },
    {
      "lang": "es",
      "value": "MatrixSSL versi\u00f3n 4.2.1 y anteriores, contienen un canal lateral de temporizaci\u00f3n en la generaci\u00f3n de firmas ECDSA. Esto permite a un atacante local o remoto, capaz de medir la duraci\u00f3n de cientos de miles de operaciones de firma, calcular la clave privada usada. El problema se presenta porque la multiplicaci\u00f3n escalar del archivo crypto/pubkey/ecc_math.c pierde la longitud de bits del scalar."
    }
  ],
  "id": "CVE-2019-13629",
  "lastModified": "2024-11-21T04:25:24.060",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-10-03T14:15:11.150",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2019/10/02/2"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Not Applicable"
      ],
      "url": "https://eprint.iacr.org/2011/232.pdf"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ],
      "url": "https://minerva.crocs.fi.muni.cz/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Not Applicable"
      ],
      "url": "https://tches.iacr.org/index.php/TCHES/article/view/7337"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2019/10/02/2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable"
      ],
      "url": "https://eprint.iacr.org/2011/232.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ],
      "url": "https://minerva.crocs.fi.muni.cz/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable"
      ],
      "url": "https://tches.iacr.org/index.php/TCHES/article/view/7337"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        },
        {
          "lang": "en",
          "value": "CWE-327"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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