gsd-2016-7068
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour.
Aliases
Aliases
CVE-2016-7068


To clipboard 

{
   GSD: {
      alias: "CVE-2016-7068",
      description: "An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour.",
      id: "GSD-2016-7068",
      references: [
         "https://www.suse.com/security/cve/CVE-2016-7068.html",
         "https://www.debian.org/security/2017/dsa-3763",
         "https://www.debian.org/security/2017/dsa-3764",
         "https://advisories.mageia.org/CVE-2016-7068.html",
         "https://security.archlinux.org/CVE-2016-7068",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2016-7068",
         ],
         details: "An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour.",
         id: "GSD-2016-7068",
         modified: "2023-12-13T01:21:20.282315Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "secalert@redhat.com",
            ID: "CVE-2016-7068",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "pdns",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "3.4.11",
                                    },
                                    {
                                       version_value: "4.0.2",
                                    },
                                    {
                                       version_value: "3.7.4",
                                    },
                                    {
                                       version_value: "4.0.4",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "Open-Xchange",
                  },
               ],
            },
         },
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  value: "An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour.",
               },
            ],
         },
         impact: {
            cvss: [
               [
                  {
                     vectorString: "5.3/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                     version: "3.0",
                  },
               ],
            ],
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "CWE-20",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068",
                  refsource: "CONFIRM",
                  url: "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068",
               },
               {
                  name: "DSA-3764",
                  refsource: "DEBIAN",
                  url: "https://www.debian.org/security/2017/dsa-3764",
               },
               {
                  name: "DSA-3763",
                  refsource: "DEBIAN",
                  url: "https://www.debian.org/security/2017/dsa-3763",
               },
               {
                  name: "https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/",
                  refsource: "CONFIRM",
                  url: "https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "3.4.11",
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "4.0.4",
                        versionStartIncluding: "4.0.0",
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "3.7.4",
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "4.0.2",
                        versionStartIncluding: "4.0.0",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "secalert@redhat.com",
               ID: "CVE-2016-7068",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "en",
                     value: "An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-400",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/",
                     refsource: "CONFIRM",
                     tags: [
                        "Vendor Advisory",
                     ],
                     url: "https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/",
                  },
                  {
                     name: "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068",
                     refsource: "CONFIRM",
                     tags: [
                        "Issue Tracking",
                        "Third Party Advisory",
                     ],
                     url: "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068",
                  },
                  {
                     name: "DSA-3764",
                     refsource: "DEBIAN",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://www.debian.org/security/2017/dsa-3764",
                  },
                  {
                     name: "DSA-3763",
                     refsource: "DEBIAN",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://www.debian.org/security/2017/dsa-3763",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               cvssV2: {
                  accessComplexity: "LOW",
                  accessVector: "NETWORK",
                  authentication: "NONE",
                  availabilityImpact: "COMPLETE",
                  baseScore: 7.8,
                  confidentialityImpact: "NONE",
                  integrityImpact: "NONE",
                  vectorString: "AV:N/AC:L/Au:N/C:N/I:N/A:C",
                  version: "2.0",
               },
               exploitabilityScore: 10,
               impactScore: 6.9,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "HIGH",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "NETWORK",
                  availabilityImpact: "HIGH",
                  baseScore: 7.5,
                  baseSeverity: "HIGH",
                  confidentialityImpact: "NONE",
                  integrityImpact: "NONE",
                  privilegesRequired: "NONE",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  version: "3.0",
               },
               exploitabilityScore: 3.9,
               impactScore: 3.6,
            },
         },
         lastModifiedDate: "2019-10-09T23:19Z",
         publishedDate: "2018-09-11T13:29Z",
      },
   },
}


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