CVE-2016-7426

Published: 13 January 2017

NTP before 4.2.8p9 rate limits responses received from the configured sources when rate limiting for all associations is enabled, which allows remote attackers to cause a denial of service (prevent responses from the sources) by sending responses with a spoofed source address.

Priority

Low

CVSS 3 base score: 7.5

Status

Package Release Status
ntp
Launchpad, Ubuntu, Debian
Upstream
Released (1:4.2.8p9+dfsg-1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(1:4.2.8p9+dfsg-2ubuntu1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (1:4.2.8p4+dfsg-3ubuntu5.5)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (1:4.2.6.p5+dfsg-3ubuntu2.14.04.11)
Patches:
Vendor: https://git.centos.org/blob/rpms!ntp.git/4eb1db127a6177011bd913bf4f446e8f701179d6/SOURCES!ntp-4.2.6p5-cve-2016-7426.patch