CVE-2016-7068
Severity CVSS v4.0:
Pending analysis
Type:
CWE-400
Uncontrolled Resource Consumption ('Resource Exhaustion')
Publication date:
11/09/2018
Last modified:
09/10/2019
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.
Impact
Base Score 3.x
7.50
Severity 3.x
HIGH
Base Score 2.0
7.80
Severity 2.0
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:* | 3.4.11 (excluding) | |
| cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:* | 4.0.0 (including) | 4.0.2 (excluding) |
| cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:* | 3.7.4 (excluding) | |
| cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:* | 4.0.0 (including) | 4.0.4 (excluding) |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page