FreeBSD : FreeBSD -- Multiple vulnerabilities of ntp (3c0237f5-420e-11e7-82c5-14dae9d210b8)

high Nessus Plugin ID 100496

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Synopsis

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

Description

A vulnerability was discovered in the NTP server's parsing of configuration directives. [CVE-2017-6464]

A vulnerability was found in NTP, in the parsing of packets from the DPTS Clock. [CVE-2017-6462]

A vulnerability was discovered in the NTP server's parsing of configuration directives. [CVE-2017-6463]

A vulnerability was found in NTP, affecting the origin timestamp check function. [CVE-2016-9042] Impact : A remote, authenticated attacker could cause ntpd to crash by sending a crafted message.
[CVE-2017-6463, CVE-2017-6464]

A malicious device could send crafted messages, causing ntpd to crash.
[CVE-2017-6462]

An attacker able to spoof messages from all of the configured peers could send crafted packets to ntpd, causing later replies from those peers to be discarded, resulting in denial of service. [CVE-2016-9042]

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?dbdad86b

Plugin Details

Severity: High

ID: 100496

File Name: freebsd_pkg_3c0237f5420e11e782c514dae9d210b8.nasl

Version: 3.7

Type: local

Published: 5/30/2017

Updated: 1/4/2021

Configuration: Enable paranoid mode

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

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

CVSS v3

Risk Factor: High

Base Score: 7.8

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:FreeBSD, cpe:/o:freebsd:freebsd

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

Patch Publication Date: 5/26/2017

Vulnerability Publication Date: 4/12/2017

Reference Information

CVE: CVE-2016-9042, CVE-2017-6462, CVE-2017-6463, CVE-2017-6464

FreeBSD: SA-17:03.ntp