PT-2017-4153 · Ntf+7 · Ntp+7

Published 2017-03-27 · Updated 2024-06-15 · CVE-2017-6462

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions NTP versions prior to 4.2.8p10 NTP versions 4.3.x prior to 4.3.94

Description The issue is related to a buffer overflow in the Datum Programmable Time Server (DPTS) refclock driver implementation of the NTP protocol. This can be exploited to cause a denial of service, allowing an attacker to crash the ntpd daemon using a crafted /dev/datum device. A remote authenticated attacker could also exploit this issue by using a malformed mode configuration directive.

Recommendations For NTP versions prior to 4.2.8p10, update to version 4.2.8p10 or later. For NTP versions 4.3.x prior to 4.3.94, update to version 4.3.94 or later. As a temporary workaround, consider restricting access to the /dev/datum device to minimize the risk of exploitation.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2017-2335

BDU:2021-04149

CESA-2017_3071

CESA-2018_0855

CVE-2017-6462

MGASA-2017-0134

OPENSUSE-SU-2024:11102-1

RHSA-2017:3071

RHSA-2017_3071

RHSA-2018:0855

RHSA-2018_0855

SUSE-SU-2017:1047-1

SUSE-SU-2017:1048-1

SUSE-SU-2017:1052-1

USN-3349-1

USN-3707-2

Affected Products

Alt Linux

Centos

Freebsd

Ibm Aix

Ntp

Red Hat

Suse

Ubuntu

References · 69

• http://support.ntp.org/bin/view/Main/NtpBug3388 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:1048-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3349-1 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2017:3071 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-6462 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-04149 · Security Note
• https://osv.dev/vulnerability/CVE-2017-6462 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2519 · Vendor Advisory
• http://support.ntp.org/bin/view/Main/SecurityNotice#March_2017_ntp_4_2_8p10_NTP_Secu · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-6462 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:1047-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7429 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-6460 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7428 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-9310 · Vendor Advisory