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CVE-2011-5055

Estado: ModificadaMedia (5)—

MaraDNS 1.3.07.12 and 1.4.08 computes hash values for DNS data without properly restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted queries with the Recursion Desired (RD) bit set. NOTE: this issue exists because of an incomplete fix for CVE-2012-0024.

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)

Maradns — Maradns

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2011-5055",
  "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": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2012-01-08T00:55:03.503",
  "references": [
    {
      "url": "http://openwall.com/lists/oss-security/2012/01/03/13",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://openwall.com/lists/oss-security/2012/01/03/6",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://samiam.org/blog/20111230.html",
      "tags": [
        "Patch"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=771428",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://openwall.com/lists/oss-security/2012/01/03/13",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://openwall.com/lists/oss-security/2012/01/03/6",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://samiam.org/blog/20111230.html",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=771428",
      "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": "MaraDNS 1.3.07.12 and 1.4.08 computes hash values for DNS data without properly restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted queries with the Recursion Desired (RD) bit set.  NOTE: this issue exists because of an incomplete fix for CVE-2012-0024."
    },
    {
      "lang": "es",
      "value": "MaraDNS v1.3.07.12 y v1.4.08 calcula los valores hash de los datos DNS sin restringir la capacidad de desencadenar colisiones hash de forma predecible, lo que permite a atacantes remotos provocar una denegación de servicio (consumo de CPU) mediante el envío de muchas consultas a mano con el bit Recursion Desired (recursividad deseada - RD) activado. NOTA: este problema existe debido a una solución incompleta para CVE-2012-0024."
    }
  ],
  "lastModified": "2026-06-16T23:35:51.407",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:maradns:maradns:1.3.07.012:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "75502768-D541-4EB5-A3EB-54227C9FFCA4"
            },
            {
              "criteria": "cpe:2.3:a:maradns:maradns:1.4.08:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "09E33EAA-8C1B-44AC-A4BB-CF0D9DC02092"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}