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CVE-2016-6172

Estado: ModificadaMedia (6.8)—

PowerDNS (aka pdns) Authoritative Server before 4.0.1 allows remote primary DNS servers to cause a denial of service (memory exhaustion and secondary DNS server crash) via a large (1) AXFR or (2) IXFR response.

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 (3)

Opensuse — LeapOpensuse — OpensusePowerdns — Authoritative Server

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2016-6172",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.1,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
          "baseScore": 6.8,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
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  ],
  "published": "2016-09-26T16:59:04.947",
  "references": [
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      "url": "http://lists.opensuse.org/opensuse-updates/2016-08/msg00085.html",
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    {
      "url": "http://www.securityfocus.com/bid/91678",
      "source": "secalert@redhat.com"
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    {
      "url": "http://www.securitytracker.com/id/1036242",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-401",
      "tags": [
        "Release Notes"
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      "source": "secalert@redhat.com"
    },
    {
      "url": "https://github.com/PowerDNS/pdns/issues/4128",
      "tags": [
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      "source": "secalert@redhat.com"
    },
    {
      "url": "https://github.com/PowerDNS/pdns/issues/4133",
      "tags": [
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      "source": "secalert@redhat.com"
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      "url": "https://github.com/PowerDNS/pdns/pull/4134",
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    },
    {
      "url": "https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html",
      "tags": [
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      "source": "secalert@redhat.com"
    },
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      "tags": [
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    },
    {
      "url": "http://www.debian.org/security/2016/dsa-3664",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "http://www.openwall.com/lists/oss-security/2016/07/06/3",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-401",
      "tags": [
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    {
      "url": "https://github.com/PowerDNS/pdns/issues/4128",
      "tags": [
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      "url": "https://github.com/PowerDNS/pdns/issues/4133",
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    },
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      "url": "https://github.com/sischkg/xfer-limit/blob/master/README.md",
      "tags": [
        "Patch"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "PowerDNS (aka pdns) Authoritative Server before 4.0.1 allows remote primary DNS servers to cause a denial of service (memory exhaustion and secondary DNS server crash) via a large (1) AXFR or (2) IXFR response."
    },
    {
      "lang": "es",
      "value": "PowerDNS (también conocido como pdns) Authoritative Server en versiones anteriores a 4.0.1 permite a servidores DNS primarios remotos provocar una denegación de servicio (agotamiento de memoria y caída del servidor DNS secundario) a través de una gran respuesta (1) AXFR o (2) IXFR."
    }
  ],
  "lastModified": "2026-06-17T00:50:34.583",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4863BE36-D16A-4D75-90D9-FD76DB5B48B7"
            },
            {
              "criteria": "cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "03117DF1-3BEC-4B8D-AD63-DBBDB2126081"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
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          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:powerdns:authoritative_server:*:*:*:*:*:*:*:*",
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              "matchCriteriaId": "B6BCE24C-DB2C-4592-BE28-B1CCDC959DF5",
              "versionEndIncluding": "4.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}