FKIE_CVE-2009-4008

Vulnerability from fkie_nvd - Published: 2011-06-02 20:55 - Updated: 2026-06-16 23:12
Severity
Summary
Unbound before 1.4.4 does not send responses for signed zones after mishandling an unspecified query, which allows remote attackers to cause a denial of service (DNSSEC outage) via a crafted query.
References
cve@mitre.orghttp://packages.debian.org/changelogs/pool/main/u/unbound/unbound_1.4.6-1/changelog
cve@mitre.orghttp://unbound.nlnetlabs.nl/downloads/unbound-1.4.4.tar.gzPatch
cve@mitre.orghttp://www.debian.org/security/2011/dsa-2243
af854a3a-2127-422b-91ae-364da2661108http://packages.debian.org/changelogs/pool/main/u/unbound/unbound_1.4.6-1/changelog
af854a3a-2127-422b-91ae-364da2661108http://unbound.nlnetlabs.nl/downloads/unbound-1.4.4.tar.gzPatch
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2011/dsa-2243
Impacted products
Vendor Product Version
nlnetlabs unbound *
nlnetlabs unbound 0.0
nlnetlabs unbound 0.1
nlnetlabs unbound 0.2
nlnetlabs unbound 0.3
nlnetlabs unbound 0.4
nlnetlabs unbound 0.5
nlnetlabs unbound 0.6
nlnetlabs unbound 0.7
nlnetlabs unbound 0.7.1
nlnetlabs unbound 0.7.2
nlnetlabs unbound 0.8
nlnetlabs unbound 0.09
nlnetlabs unbound 0.10
nlnetlabs unbound 0.11
nlnetlabs unbound 1.0.0
nlnetlabs unbound 1.0.1
nlnetlabs unbound 1.0.2
nlnetlabs unbound 1.1.0
nlnetlabs unbound 1.1.1
nlnetlabs unbound 1.2.0
nlnetlabs unbound 1.2.1
nlnetlabs unbound 1.3.0
nlnetlabs unbound 1.3.1
nlnetlabs unbound 1.3.2
nlnetlabs unbound 1.3.3
nlnetlabs unbound 1.3.4
nlnetlabs unbound 1.4.0
nlnetlabs unbound 1.4.1
nlnetlabs unbound 1.4.2
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
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            },
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              "vulnerable": true
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              "vulnerable": true
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          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Unbound before 1.4.4 does not send responses for signed zones after mishandling an unspecified query, which allows remote attackers to cause a denial of service (DNSSEC outage) via a crafted query."
    },
    {
      "lang": "es",
      "value": "Unbound, antes de v1.4.4 no env\u00eda respuestas para las zonas firmadas despu\u00e9s de un mal manejo de una consulta no especificada, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (falta de DNSSEC) a trav\u00e9s de una consulta hecha a mano."
    }
  ],
  "id": "CVE-2009-4008",
  "lastModified": "2026-06-16T23:12:49.017",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2011-06-02T20:55:01.763",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://packages.debian.org/changelogs/pool/main/u/unbound/unbound_1.4.6-1/changelog"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
      ],
      "url": "http://unbound.nlnetlabs.nl/downloads/unbound-1.4.4.tar.gz"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.debian.org/security/2011/dsa-2243"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://packages.debian.org/changelogs/pool/main/u/unbound/unbound_1.4.6-1/changelog"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "http://unbound.nlnetlabs.nl/downloads/unbound-1.4.4.tar.gz"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.debian.org/security/2011/dsa-2243"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-399"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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