{"id":"CVE-2016-7068","state":"PUBLISHED","title":"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 usag","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.","publishedAt":"2018-09-11T13:00:00.000Z","updatedAt":"2024-08-06T01:50:47.232Z","severity":{"score":5.3,"label":"Medium","version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","source":"redhat"},"assigner":"redhat","products":["Open-Xchange pdns"],"affected":[{"vendor":"Open-Xchange","product":"pdns","versions":[{"version":"3.4.11","status":"affected"},{"version":"4.0.2","status":"affected"},{"version":"3.7.4","status":"affected"},{"version":"4.0.4","status":"affected"}]}],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068","https://www.debian.org/security/2017/dsa-3764","https://www.debian.org/security/2017/dsa-3763","https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T19:42:53.149Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2016/7xxx/CVE-2016-7068.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2016-7068","state":"PUBLISHED","datePublished":"2018-09-11T13:00:00.000Z","dateUpdated":"2024-08-06T01:50:47.232Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2016-08-23T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"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. 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