CVE-2016-7072

MEDIUM

PowerDNS Authoritative < 3.4.11 and 4.0.2 - Unauthenticated Denial of Service via TCP Connection Exhaustion

Title source: llm
STIX 2.1

Description

An issue has been found in PowerDNS Authoritative Server before 3.4.11 and 4.0.2 allowing a remote, unauthenticated attacker to cause a denial of service by opening a large number of TCP connections to the web server. If the web server runs out of file descriptors, it triggers an exception and terminates the whole PowerDNS process. While it's more complicated for an unauthorized attacker to make the web server run out of file descriptors since its connection will be closed just after being accepted, it might still be possible.

References (3)

Core 3
Core References
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7072
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2017/dsa-3764

Scores

CVSS v3 5.3
EPSS 0.0632
EPSS Percentile 92.7%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Details

CWE
CWE-20 CWE-400
Status published
Products (2)
debian/debian_linux 8.0
powerdns/authoritative < 3.4.11
Published Sep 10, 2018
Tracked Since Feb 18, 2026