CVE-2012-2808

Status: ModifiedMedium (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

Version: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Base score: 5

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.27%
Percentile among all scored CVEs: 69
Score date: 10/4/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Google — Bionic

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
  "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"
}