CVE-2016-6172

6.8 MEDIUM

Published: September 26, 2016 Modified: May 06, 2026

Description

PowerDNS (aka pdns) Authoritative Server before 4.0.1 allows remote primary DNS servers to cause a denial of service (memory exhaustion and secondary DNS server crash) via a large (1) AXFR or (2) IXFR response.

AI Explanation

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://lists.opensuse.org/opensuse-updates/2016-08/msg00085.html

Source: secalert@redhat.com

Third Party Advisory

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

Source: secalert@redhat.com

http://www.openwall.com/lists/oss-security/2016/07/06/3

Source: secalert@redhat.com

Mailing List

http://www.securityfocus.com/bid/91678

Source: secalert@redhat.com

http://www.securitytracker.com/id/1036242

Source: secalert@redhat.com

https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-401

Source: secalert@redhat.com

Release Notes

https://github.com/PowerDNS/pdns/issues/4128

Source: secalert@redhat.com

Issue Tracking

https://github.com/PowerDNS/pdns/issues/4133

Source: secalert@redhat.com

Issue Tracking

https://github.com/PowerDNS/pdns/pull/4134

Source: secalert@redhat.com

Issue Tracking

https://github.com/sischkg/xfer-limit/blob/master/README.md

Source: secalert@redhat.com

Patch

https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html

Source: secalert@redhat.com

Mailing List Third Party Advisory

http://lists.opensuse.org/opensuse-updates/2016-08/msg00085.html