CVEvulnerability

CVE-2016-2120

6.5 MEDIUM Published 2018-11-01 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2018-11-01
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
7.5 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.0 ([email protected])
6.5 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:P
Weaknesses
CWE-190

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.

Affected configurations

• powerdns authoritative (<= 3.4.10) • powerdns authoritative (>= 4.0.0 <= 4.0.1) • debian debian linux 8.0

Related

Weakness · CWE (1)

  • CWE-190 Integer Overflow or Wraparound weakness

References