CVE-2016-7068 Details
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068 | CVE | Issue TrackingThird Party Advisory |
| https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/ | CVE | Vendor Advisory |
| https://www.debian.org/security/2017/dsa-3763 | CVE | Third Party Advisory |
| https://www.debian.org/security/2017/dsa-3764 | CVE | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068 | [email protected] | Issue TrackingThird Party Advisory |
| https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/ | [email protected] | Vendor Advisory |
| https://www.debian.org/security/2017/dsa-3763 | [email protected] | Third Party Advisory |
| https://www.debian.org/security/2017/dsa-3764 | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-400 | Uncontrolled Resource Consumption | [email protected] |
| CWE-20 | Improper Input Validation | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| powerdns authoritative | < 3.4.11 >= 4.0.0, < 4.0.2 |
CPE
Remediation
| |
| powerdns recursor | < 3.7.4 >= 4.0.0, < 4.0.4 |
CPE
Remediation
| |
| debian debian linux | 8.0 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Oct 9, 2019 | CVE Modified | [email protected] |
| Nov 16, 2018 | Initial Analysis | [email protected] |
| Sep 12, 2018 | CVE Modified | [email protected] |