CVE-2016-7072 Information

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.

CVSS Vector

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

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7072 https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/ https://www.debian.org/security/2017/dsa-3764

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5