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CVE-2016-7072

Published: 10 September 2018

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.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
pdns
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Not vulnerable
(4.0.2-1)
cosmic Not vulnerable
(4.0.2-1)
disco Not vulnerable
(4.0.2-1)
eoan Not vulnerable
(4.0.2-1)
focal Not vulnerable
(4.0.2-1)
groovy Not vulnerable
(4.0.2-1)
hirsute Not vulnerable
(4.0.2-1)
impish Not vulnerable
(4.0.2-1)
jammy Not vulnerable
(4.0.2-1)
kinetic Not vulnerable
(4.0.2-1)
lunar Not vulnerable
(4.0.2-1)
mantic Not vulnerable
(4.0.2-1)
noble Not vulnerable
(4.0.2-1)
precise Ignored
(end of life)
trusty Does not exist
(trusty was needed)
upstream
Released (4.0.2-1)
xenial Needed

yakkety Ignored
(end of life)
zesty Ignored
(end of life)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H