FKIE_CVE-2016-0747

Vulnerability from fkie_nvd - Published: 2016-02-15 19:59 - Updated: 2026-06-17 00:38
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 does not properly limit CNAME resolution, which allows remote attackers to cause a denial of service (worker process resource consumption) via vectors related to arbitrary name resolution.
References
secalert@redhat.comhttp://lists.opensuse.org/opensuse-updates/2016-02/msg00042.htmlMailing List, Third Party Advisory
secalert@redhat.comhttp://mailman.nginx.org/pipermail/nginx/2016-January/049700.htmlVendor Advisory
secalert@redhat.comhttp://seclists.org/fulldisclosure/2021/Sep/36Mailing List, Third Party Advisory
secalert@redhat.comhttp://www.debian.org/security/2016/dsa-3473Third Party Advisory
secalert@redhat.comhttp://www.securitytracker.com/id/1034869Third Party Advisory, VDB Entry
secalert@redhat.comhttp://www.ubuntu.com/usn/USN-2892-1Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2016:1425Third Party Advisory
secalert@redhat.comhttps://bto.bluecoat.com/security-advisory/sa115Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1302589Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://security.gentoo.org/glsa/201606-06Third Party Advisory
secalert@redhat.comhttps://support.apple.com/kb/HT212818Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2016-02/msg00042.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://mailman.nginx.org/pipermail/nginx/2016-January/049700.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2021/Sep/36Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2016/dsa-3473Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1034869Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2892-1Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2016:1425Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bto.bluecoat.com/security-advisory/sa115Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1302589Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201606-06Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT212818Third Party Advisory
Impacted products
Vendor Product Version
f5 nginx *
f5 nginx *
canonical ubuntu_linux 14.04
canonical ubuntu_linux 15.10
debian debian_linux 7.0
debian debian_linux 8.0
debian debian_linux 9.0
opensuse leap 42.1
opensuse leap 42.1
apple xcode *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FB42AA9F-E2F7-471C-AAC1-953469630349",
              "versionEndExcluding": "1.8.1",
              "versionStartIncluding": "0.6.18",
              "vulnerable": true
            },
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              "versionEndExcluding": "1.9.10",
              "versionStartIncluding": "1.9.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
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              "vulnerable": true
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              "matchCriteriaId": "E88A537F-F4D0-46B9-9E37-965233C2A355",
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              "vulnerable": true
            },
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            },
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          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 does not properly limit CNAME resolution, which allows remote attackers to cause a denial of service (worker process resource consumption) via vectors related to arbitrary name resolution."
    },
    {
      "lang": "es",
      "value": "El traductor de direcciones en nginx en versiones anteriores a 1.8.1 y 1.9.x en versiones anteriores a 1.9.10 no limita correctamente la resoluci\u00f3n CNAME, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (consumo de recursos por el proceso trabajador) a trav\u00e9s de vectores relacionados con la resoluci\u00f3n de nombre arbitrario."
    }
  ],
  "id": "CVE-2016-0747",
  "lastModified": "2026-06-17T00:38:08.503",
  "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"
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2016-02-15T19:59:02.123",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.opensuse.org/opensuse-updates/2016-02/msg00042.html"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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      "url": "http://mailman.nginx.org/pipermail/nginx/2016-January/049700.html"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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    {
      "source": "secalert@redhat.com",
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    {
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      "url": "http://www.ubuntu.com/usn/USN-2892-1"
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    {
      "source": "secalert@redhat.com",
      "tags": [
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      ],
      "url": "https://access.redhat.com/errata/RHSA-2016:1425"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://bto.bluecoat.com/security-advisory/sa115"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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    {
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  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Tags
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.