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CVE-2012-2808

Estado: ModificadaMedia (5)—

The PRNG implementation in the DNS resolver in Bionic in Android before 4.1.1 incorrectly uses time and PID information during the generation of random numbers for query ID values and UDP source ports, which makes it easier for remote attackers to spoof DNS responses by guessing these numbers, a related issue to CVE-2015-0800.

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)

Google — Bionic

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2012-2808",
  "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:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "chrome-cve-admin@google.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2015-04-01T10:59:00.067",
  "references": [
    {
      "url": "http://blog.watchfire.com/files/androiddnsweakprng.pdf",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.mozilla.org/security/announce/2015/mfsa2015-41.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://blog.watchfire.com/files/androiddnsweakprng.pdf",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mozilla.org/security/announce/2015/mfsa2015-41.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The PRNG implementation in the DNS resolver in Bionic in Android before 4.1.1 incorrectly uses time and PID information during the generation of random numbers for query ID values and UDP source ports, which makes it easier for remote attackers to spoof DNS responses by guessing these numbers, a related issue to CVE-2015-0800."
    },
    {
      "lang": "es",
      "value": "La implementación PRNG en el solucionador (resolver) DNS en Bionic en Android anterior a 4.1.1 utiliza incorrectamente la información de tiempos y PID durante la generación de números aleatorios para los valores de identificadores de consultas y los puertos de fuentes UDP, lo que facilita a atacantes remotos falsificar respuestas DNS mediante la adivinación de estos números, un problema relacionado con CVE-2015-0800."
    }
  ],
  "lastModified": "2026-06-16T23:42:08.587",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:google:bionic:*:*:*:*:*:android:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FBC88407-7A04-4CA1-A1B5-C192A69F865C",
              "versionEndIncluding": "4.1.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "evaluatorComment": "<a href=\"https://cwe.mitre.org/data/definitions/330.html\">CWE-330: Use of Insufficiently Random Values</a>",
  "sourceIdentifier": "chrome-cve-admin@google.com"
}