CVE-2018-7184

Published: 06 March 2018

ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.

Priority

Low

CVSS 3 base score: 7.5

Status

Package Release Status
ntp
Launchpad, Ubuntu, Debian
Upstream
Released (4.2.8p11)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (1:4.2.8p10+dfsg-5ubuntu7.1)
Ubuntu 16.04 LTS (Xenial Xerus) Not vulnerable
(1:4.2.8p4+dfsg-3ubuntu5.8)
Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable
(1:4.2.6.p5+dfsg-3ubuntu2.14.04.12)
Patches:
Upstream: http://bk.ntp.org/ntp-stable/?PAGE=cset&REV=5a76f46bK1M87GD1tJounOczC-5Zow