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

This script is Copyright (C) 2017 Tenable Network Security, Inc.


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]

See also :

http://www.nessus.org/u?09b080ce

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 4.6
(CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P)

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 100496 ()

Bugtraq ID:

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

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