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PowerDNS Authoritative Server DoS Vulnerability

Information

Severity

Severity

Medium

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

6 years ago

Modified

Modified

4 years ago

Summary

PowerDNS Authoritative Server is prone to a denial of service vulnerability.

Insight

Insight

A bug was found in the packet parsing code. This bug, when exploited, causes an assertion error and consequent termination of the the pdns_server process, causing a Denial of Service. When the PowerDNS Authoritative Server is run inside the guardian (--guardian), or inside a supervisor like supervisord or systemd, it will be automatically restarted, limiting the impact to a somewhat degraded service.

Affected Software

Affected Software

PowerDNS Authoritative Server 3.4.4 until 3.4.6

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Upgrade to version 3.4.7 or later

Common Vulnerabilities and Exposures (CVE)