CVE-2016-7068

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Summary

CVECVE-2016-7068
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-09-11 13:29:00 UTC
Updated2019-10-09 23:19:00 UTC
DescriptionAn 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.

Risk And Classification

Problem Types: CWE-400

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 8.0 All All All
Application Powerdns Authoritative All All All All
Application Powerdns Authoritative All All All All
Application Powerdns Recursor All All All All
Application Powerdns Recursor All All All All

References

ReferenceSourceLinkTags
Debian -- Security Information -- DSA-3764-1 pdns DEBIAN www.debian.org Third Party Advisory
1627365 – (CVE-2016-7068) CVE-2016-7068 pdns: Crafted queries can cause abnormal CPU usage CONFIRM bugzilla.redhat.com Issue Tracking, Third Party Advisory
Debian -- Security Information -- DSA-3763-1 pdns-recursor DEBIAN www.debian.org Third Party Advisory
Advisory 2016-02 CONFIRM doc.powerdns.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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