CVE-2016-2120

HIGH

PowerDNS Authoritative <= 3.4.10 - Authenticated Denial of Service via Crafted DNS Record

Title source: llm
STIX 2.1

Description

An issue has been found in PowerDNS Authoritative Server versions up to and including 3.4.10, 4.0.1 allowing an authorized user to crash the server by inserting a specially crafted record in a zone under their control then sending a DNS query for that record. The issue is due to an integer overflow when checking if the content of the record matches the expected size, allowing an attacker to cause a read past the buffer boundary.

References (2)

Core 2
Core References
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2017/dsa-3764
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2120

Scores

CVSS v3 7.5
EPSS 0.0200
EPSS Percentile 78.2%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-190
Status published
Products (2)
debian/debian_linux 8.0
powerdns/authoritative < 3.4.10
Published Nov 01, 2018
Tracked Since Feb 18, 2026