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CVE-2016-7428

Published: 13 January 2017

ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via the poll interval in a broadcast packet.

Notes

AuthorNote
mdeslaur
ntp-4.2.8p6, up to but not including ntp-4.2.8p9, and ntp-4.3.90
up to, but not including ntp-4.3.94

introduced with CVE-2015-7973 patch

Priority

Low

Cvss 3 Severity Score

4.3

Score breakdown

Status

Package Release Status
ntp
Launchpad, Ubuntu, Debian
artful Not vulnerable
(1:4.2.8p9+dfsg-2ubuntu1)
bionic Not vulnerable
(1:4.2.8p9+dfsg-2ubuntu1)
cosmic Not vulnerable
(1:4.2.8p9+dfsg-2ubuntu1)
precise Ignored
(end of life)
trusty
Released (1:4.2.6.p5+dfsg-3ubuntu2.14.04.11)
upstream
Released (1:4.2.8p9+dfsg-1)
xenial
Released (1:4.2.8p4+dfsg-3ubuntu5.5)
yakkety
Released (1:4.2.8p8+dfsg-1ubuntu2.1)
zesty Not vulnerable
(1:4.2.8p9+dfsg-2ubuntu1)
Patches:
upstream: http://bk1.ntp.org/ntp-stable/?PAGE=cset&REV=58087060DCRnphupdSD9lErtsIGR4w

Severity score breakdown

Parameter Value
Base score 4.3
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact Low
Vector CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L