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.
Published: 2018-09-11
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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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.
History

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Subscriptions

Debian Debian Linux
Powerdns Authoritative Recursor
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

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

Reserved: 2016-08-23T00:00:00.000Z

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.

Weaknesses