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.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-798-1 pdns security update
Debian DSA Debian DSA DSA-3763-1 pdns-recursor security update
Debian DSA Debian DSA DSA-3764-1 pdns security update
EUVD EUVD EUVD-2016-7948 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T01:50:47.232Z

Reserved: 2016-08-23T00:00:00

Link: CVE-2016-7068

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-09-11T13:29:00.713

Modified: 2024-11-21T02:57:23.717

Link: CVE-2016-7068

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.