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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: redhat
Published: 2018-09-11T13:00:00
Updated: 2024-08-06T01:50:47.232Z
Reserved: 2016-08-23T00:00:00
Link: CVE-2016-7068
Vulnrichment
No data.
NVD
Status : Modified
Published: 2018-09-11T13:29:00.713
Modified: 2024-11-21T02:57:23.717
Link: CVE-2016-7068
Redhat
No data.