CVE-2016-5427

Published: Sep 21, 2016Modified: May 6, 2026

7.5

Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query.

Affected (1)

Products: Powerdns: Authoritative

Powerdns

1 product

Authoritative

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Powerdns Authoritative	Up to 3.4.9

Related CWEs

CWE-399

References (12)

http://www.debian.org/security/2016/dsa-3664

Source: secalert@redhat.com

http://www.openwall.com/lists/oss-security/2016/09/09/3

Source: secalert@redhat.com

Release Notes

http://www.securityfocus.com/bid/92917

Source: secalert@redhat.com

http://www.securitytracker.com/id/1036761

Source: secalert@redhat.com

https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/

Source: secalert@redhat.com

Vendor Advisory

https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3

Source: secalert@redhat.com

http://www.debian.org/security/2016/dsa-3664