PowerDNS Authoritative Server 3.4.4 / 3.4.5 / 3.4.6 Process Packet Handling DoS

medium Nessus Plugin ID 87947


The remote name server is affected by a denial of service vulnerability.


According to its self-reported version number, the version of the PowerDNS Authoritative Server listening on the remote host is version 3.4.4, 3.4.5, or 3.4.6. It is, therefore, affected by a denial of service vulnerability due to an assertion flaw that is triggered when handling malformed packets. An unauthenticated, remote attacker can exploit this vulnerability, via crafted query packets, to crash the server.

Note that Nessus has not attempted to exploit this issue but has instead relied only on the application's self-reported version number.
Also, Nessus has not checked for the presence of the patch.


Upgrade to PowerDNS Authoritative Server 3.4.7 or later.
Alternatively, apply the patch referenced in the vendor advisory.

See Also


Plugin Details

Severity: Medium

ID: 87947

File Name: powerdns_authoritative_3_4_7.nasl

Version: 1.5

Type: remote

Family: DNS

Published: 1/15/2016

Updated: 11/19/2019

Configuration: Enable paranoid mode

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2015-5311

Vulnerability Information

CPE: cpe:/a:powerdns:powerdns, cpe:/a:powerdns:authoritative

Required KB Items: Settings/ParanoidReport, pdns/version_full, pdns/version_source, pdns/type

Exploit Ease: No known exploits are available

Patch Publication Date: 11/3/2015

Vulnerability Publication Date: 11/9/2015

Reference Information

CVE: CVE-2015-5311

BID: 77522