ghsa-g832-5583-wc79
Vulnerability from github
Published
2022-05-13 01:38
Modified
2022-05-13 01:38
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.

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{
   affected: [],
   aliases: [
      "CVE-2016-7068",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-400",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2018-09-11T13:29:00Z",
      severity: "HIGH",
   },
   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: "GHSA-g832-5583-wc79",
   modified: "2022-05-13T01:38:41Z",
   published: "2022-05-13T01:38:41Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2016-7068",
      },
      {
         type: "WEB",
         url: "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068",
      },
      {
         type: "WEB",
         url: "https://doc.powerdns.com/md/security/powerdns-advisory-2016-02",
      },
      {
         type: "WEB",
         url: "https://www.debian.org/security/2017/dsa-3763",
      },
      {
         type: "WEB",
         url: "https://www.debian.org/security/2017/dsa-3764",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
         type: "CVSS_V3",
      },
   ],
}


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