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CVE-2024-34702

Estado: AplazadaMedia (5.3)—

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to 3.5.0 and 2.19.5, checking name constraints in X.509 certificates is quadratic in the number of names and name constraints. An attacker who presented a certificate chain which contained a very large number of names in the SubjectAlternativeName, signed by a CA certificate which contained a large number of name constraints, could cause a denial of service. The problem has been addressed in Botan 3.5.0 and a partial backport has also been applied and is included in Botan 2.19.5.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Botan — BotanAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2024-34702",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-34702",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-07-08T17:49:00.765800Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "randombit",
          "product": "botan",
          "versions": [
            {
              "status": "affected",
              "version": "< 2.19.5"
            },
            {
              "status": "affected",
              "version": ">= 3.0.0, < 3.5.0"
            }
          ]
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:randombit:botan:*:*:*:*:*:*:*:*"
          ],
          "vendor": "randombit",
          "product": "botan",
          "versions": [
            {
              "status": "affected",
              "version": "3.0.0",
              "lessThan": "3.5.0",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "0",
              "lessThan": "2.19.5",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2024-07-08T17:15:11.233",
  "references": [
    {
      "url": "https://github.com/randombit/botan/commit/21dccc8fef18c165ba3301d850ac61521f85637e",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/randombit/botan/commit/39535f13c322f56aa3da2f44b2b6abb8619a82ac",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/randombit/botan/commit/477822a2d10f02d8ba46c9d8a5132f25843f5cc1",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/randombit/botan/commit/7606d70d3a2ac7114476ec2651ca0243c4536fdf",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/randombit/botan/commit/c3264821b9f6286ee4e6e3e06826f6b7177e6d41",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/randombit/botan/commit/ff704b12e6fa351aaedd07bffdc91722e84586b8",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/randombit/botan/pull/4034",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/randombit/botan/pull/4045",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/randombit/botan/pull/4047",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/randombit/botan/pull/4052",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/randombit/botan/pull/4186",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/randombit/botan/pull/4187",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/randombit/botan/security/advisories/GHSA-5gg9-hqpr-r58j",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/randombit/botan/commit/21dccc8fef18c165ba3301d850ac61521f85637e",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/randombit/botan/commit/39535f13c322f56aa3da2f44b2b6abb8619a82ac",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/randombit/botan/commit/477822a2d10f02d8ba46c9d8a5132f25843f5cc1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/randombit/botan/commit/7606d70d3a2ac7114476ec2651ca0243c4536fdf",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/randombit/botan/commit/c3264821b9f6286ee4e6e3e06826f6b7177e6d41",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/randombit/botan/commit/ff704b12e6fa351aaedd07bffdc91722e84586b8",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/randombit/botan/pull/4034",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/randombit/botan/pull/4045",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/randombit/botan/pull/4047",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/randombit/botan/pull/4052",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/randombit/botan/pull/4186",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/randombit/botan/pull/4187",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/randombit/botan/security/advisories/GHSA-5gg9-hqpr-r58j",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-405"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters.  Prior to 3.5.0 and 2.19.5, checking name constraints in X.509 certificates is quadratic in the number of names and name constraints. An attacker who presented a certificate chain which contained a very large number of names in the SubjectAlternativeName, signed by a CA certificate which contained a large number of name constraints, could cause a denial of service. The problem has been addressed in Botan 3.5.0 and a partial backport has also been applied and is included in Botan 2.19.5."
    },
    {
      "lang": "es",
      "value": "Botan es una librería de criptografía C++. Los certificados X.509 pueden identificar curvas elípticas utilizando un identificador de objeto o una codificación explícita de los parámetros. Antes de 3.5.0 y 2.19.5, la verificación de las restricciones de nombres en los certificados X.509 era cuadrática en el número de nombres y restricciones de nombres. Un atacante que presentara una cadena de certificados que contuviera una gran cantidad de nombres en el SubjectAlternativeName, firmado por un certificado de CA que contuviera una gran cantidad de restricciones de nombres, podría provocar una denegación de servicio. El problema se solucionó en Botan 3.5.0 y también se aplicó un backport parcial que se incluye en Botan 2.19.5."
    }
  ],
  "lastModified": "2026-06-17T07:33:54.357",
  "sourceIdentifier": "security-advisories@github.com"
}