CVE-2016-2775 (GCVE-0-2016-2775)

Vulnerability from cvelistv5 – Published: 2016-07-19 22:00 – Updated: 2024-08-05 23:32
VLAI
Summary
ISC BIND 9.x before 9.9.9-P2, 9.10.x before 9.10.4-P2, and 9.11.x before 9.11.0b2, when lwresd or the named lwres option is enabled, allows remote attackers to cause a denial of service (daemon crash) via a long request that uses the lightweight resolver protocol.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
References
Date Public
2016-07-18 00:00
Show details on NVD website
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          "value": "ISC BIND 9.x before 9.9.9-P2, 9.10.x before 9.10.4-P2, and 9.11.x before 9.11.0b2, when lwresd or the named lwres option is enabled, allows remote attackers to cause a denial of service (daemon crash) via a long request that uses the lightweight resolver protocol."
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                    "vulnerable": true
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                "negate": false,
                "operator": "OR"
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            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "ISC BIND 9.x before 9.9.9-P2, 9.10.x before 9.10.4-P2, and 9.11.x before 9.11.0b2, when lwresd or the named lwres option is enabled, allows remote attackers to cause a denial of service (daemon crash) via a long request that uses the lightweight resolver protocol."
          },
          {
            "lang": "es",
            "value": "ISC BIND 9.x en versiones anteriores a 9.9.9-P2, 9.10.x en versiones anteriores a 9.10.4-P2 y 9.11.x en versiones anteriores a 9.11.0b2, cuando lwresd o la opci\u00f3n nombrada lwres est\u00e1 habilitada, permite a atacantes remotos provocar una denegaci\u00f3n de servicio (ca\u00edda del demonio) a trav\u00e9s de una petici\u00f3n larga que utiliza el protocolo ligero de resoluci\u00f3n."
          }
        ],
        "id": "CVE-2016-2775",
        "lastModified": "2026-05-06T22:30:45.220",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
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                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 4.3,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
                "version": "2.0"
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              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
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              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
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              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
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                "baseScore": 5.9,
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                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
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              "exploitabilityScore": 2.2,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
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        },
        "published": "2016-07-19T22:59:00.147",
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    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T12:01:21+00:00",
      "cve": "CVE-2016-2775",
      "id": "CVE-2016-2775",
      "initial_release_date": "2016-07-18T00:00:00+00:00",
      "product_status:fixed": "1656",
      "product_status:known_affected": "2",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "bind: Too long query name causes segmentation fault in lwresd",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-2775.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-01T02:19:22Z",
      "cve": "CVE-2016-2775",
      "id": "CVE-2016-2775",
      "initial_release_date": "2023-02-15T05:05:36Z",
      "product_status:known_affected": "385",
      "product_status:known_not_affected": "262",
      "product_status:recommended": "952",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2016-2775",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-2775.json",
      "version": "42"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.