FreeBSD : ntp -- multiple vulnerabilities (af485ef4-1c58-11e8-8477-d05099c0ae8c)

critical Nessus Plugin ID 107046


New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The remote FreeBSD host is missing one or more security-related updates.


Network Time Foundation reports :

The NTP Project at Network Time Foundation is releasing ntp-4.2.8p11.

This release addresses five security issues in ntpd :

- LOW/MEDIUM: Sec 3012 / CVE-2016-1549 / VU#961909: Sybil vulnerability: ephemeral association attack

- INFO/MEDIUM: Sec 3412 / CVE-2018-7182 / VU#961909 : ctl_getitem():
buffer read overrun leads to undefined behavior and information leak

- LOW: Sec 3415 / CVE-2018-7170 / VU#961909: Multiple authenticated ephemeral associations

- LOW: Sec 3453 / CVE-2018-7184 / VU#961909: Interleaved symmetric mode cannot recover from bad state

- LOW/MEDIUM: Sec 3454 / CVE-2018-7185 / VU#961909 : Unauthenticated packet can reset authenticated interleaved association

one security issue in ntpq :

- MEDIUM: Sec 3414 / CVE-2018-7183 / VU#961909 : ntpq:decodearr() can write beyond its buffer limit

and provides over 33 bugfixes and 32 other improvements.


Update the affected packages.

See Also

Plugin Details

Severity: Critical

ID: 107046

File Name: freebsd_pkg_af485ef41c5811e88477d05099c0ae8c.nasl

Version: 3.7

Type: local

Published: 2/28/2018

Updated: 4/5/2019

Dependencies: ssh_get_info.nasl

Risk Information


Risk Factor: Medium

Score: 6.7


Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:POC/RL:OF/RC:C


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:ntp, p-cpe:/a:freebsd:freebsd:ntp-devel, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/28/2018

Vulnerability Publication Date: 2/27/2018

Reference Information

CVE: CVE-2016-1549, CVE-2018-7170, CVE-2018-7182, CVE-2018-7183, CVE-2018-7184, CVE-2018-7185

FreeBSD: SA-18:02.ntp