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CVE-2012-0839

Estado: ModificadaMedia (5)—

OCaml 3.12.1 and earlier computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.

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)

Inria — Ocaml

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2012-0839",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2012-02-08T20:55:00.797",
  "references": [
    {
      "url": "http://openwall.com/lists/oss-security/2012/02/07/1",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://openwall.com/lists/oss-security/2012/02/07/2",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://secunia.com/advisories/47853",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.mail-archive.com/caml-list%40inria.fr/msg01477.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.mail-archive.com/caml-list%40inria.fr/msg01478.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.nruns.com/_downloads/advisory28122011.pdf",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.ocert.org/advisories/ocert-2011-003.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://openwall.com/lists/oss-security/2012/02/07/1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://openwall.com/lists/oss-security/2012/02/07/2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/47853",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mail-archive.com/caml-list%40inria.fr/msg01477.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mail-archive.com/caml-list%40inria.fr/msg01478.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.nruns.com/_downloads/advisory28122011.pdf",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ocert.org/advisories/ocert-2011-003.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "OCaml 3.12.1 and earlier computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table."
    },
    {
      "lang": "es",
      "value": "oCaml v3.12.1 y anteriores calcula los valores de hash sin restringir la capacidad para activar las colisiones hash predecibles, lo que permite a atacantes dependientes de contexto causar una denegación de servicio (consumo de CPU) a través de entrada modificada a una aplicación que mantiene una tabla hash."
    }
  ],
  "lastModified": "2026-06-16T23:38:21.683",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
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              "vulnerable": true,
              "matchCriteriaId": "B7FCCC63-2144-41C8-A384-B6AB6EAA4929",
              "versionEndIncluding": "3.12.1"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "8160D4BF-3382-4E3D-97E6-11C6B0C3621B"
            },
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            },
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              "matchCriteriaId": "450149B1-9AD3-4805-A1F1-30DF8F689E3D"
            },
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            },
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  "sourceIdentifier": "secalert@redhat.com"
}