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FreeBSD : ntp -- denial of service vulnerability (4eae4f46-b5ce-11e5-8a2b-d050996490d0)

high Nessus Plugin ID 87790

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Synopsis

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

Description

Network Time Foundation reports :

NTF's NTP Project has been notified of the following 1 medium-severity vulnerability that is fixed in ntp-4.2.8p5, released on Thursday, 7 January 2016 :

NtpBug2956: Small-step/Big-step CVE-2015-5300

Solution

Update the affected packages.

See Also

https://www.cs.bu.edu/~goldbe/NTPattack.html

http://support.ntp.org/bin/view/Main/NtpBug2956

http://www.nessus.org/u?a0081416

http://www.nessus.org/u?2081960d

Plugin Details

Severity: High

ID: 87790

File Name: freebsd_pkg_4eae4f46b5ce11e58a2bd050996490d0.nasl

Version: 2.9

Type: local

Published: 1/8/2016

Updated: 1/4/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3

Risk Factor: High

Base Score: 7.5

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

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

Patch Publication Date: 1/8/2016

Vulnerability Publication Date: 10/21/2015

Reference Information

CVE: CVE-2015-5300

FreeBSD: SA-16:02.ntp