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CVE-2018-7182

Published: 6 March 2018

The ctl_getitem method in ntpd in ntp-4.2.8p6 before 4.2.8p11 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted mode 6 packet with a ntpd instance from 4.2.8p6 through 4.2.8p10.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
ntp
Launchpad, Ubuntu, Debian
upstream
Released (4.2.8p11)
precise Not vulnerable

trusty Not vulnerable
(1:4.2.6.p5+dfsg-3ubuntu2.14.04.12)
xenial Not vulnerable
(1:4.2.8p4+dfsg-3ubuntu5.8)
artful
Released (1:4.2.8p10+dfsg-5ubuntu3.3)
bionic
Released (1:4.2.8p10+dfsg-5ubuntu7.1)
Patches:
upstream: http://bk.ntp.org/ntp-stable/?PAGE=cset&REV=59e033aeB4GEMXOx6d1EF6zRwQSFYA

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