Vulnerability Details

NTP Multiple Denial-of-Service Vulnerabilities -Mar17

Published: 2017-03-23 06:05:22
CVE Author: NIST National Vulnerability Database

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

Detection Type:
Remote Banner Unreliable

Summary:
The host is running NTP and is prone to multiple denial of service vulnerabilities.

Detection Method:
Checks if a vulnerable version is present on the target host.

Technical Details:
Multiple flaws exists due to - Improper handling of a malformed mode configuration directive. - A buffer overflow error in Legacy Datum Programmable Time Server refclock driver. - Improper handling of an invalid setting via the :config directive. - Incorrect pointer usage in the function 'ntpq_stripquotes'. - No allocation of memory for a specific amount of items of the same size in 'oreallocarray' function. - ntpd configured to use the PPSAPI under Windows. - Limited passed application path size under Windows. - An error leading to garbage Windows Registry creation in Windows. - Copious amounts of Unused Code. - Off-by-one error in Oncore GPS Receiver. - Potential Overflows in 'ctl_put' functions. - Improper use of 'snprintf' function in mx4200_send function. - Buffer Overflow in ntpq when fetching reslist from a malicious ntpd. - Potential Overflows in 'ctl_put' functions. - Potential denial of service in origin timestamp check functionality of ntpd.

Impact:
Successful exploitation will allows remote attackers to conduct denial of service condition.

Affected Versions:
NTP versions 4.x before 4.2.8p10 and 4.3.x before 4.3.94

Recommendations:
Upgrade to NTP version 4.2.8p10 or 4.3.94 or later.

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2017-6464
https://nvd.nist.gov/vuln/detail/CVE-2017-6462
https://nvd.nist.gov/vuln/detail/CVE-2017-6463
https://nvd.nist.gov/vuln/detail/CVE-2017-6455
https://nvd.nist.gov/vuln/detail/CVE-2017-6452
https://nvd.nist.gov/vuln/detail/CVE-2017-6459
https://nvd.nist.gov/vuln/detail/CVE-2017-6458
https://nvd.nist.gov/vuln/detail/CVE-2017-6451
https://nvd.nist.gov/vuln/detail/CVE-2017-6460
https://nvd.nist.gov/vuln/detail/CVE-2016-9042

References:

http://support.ntp.org/bin/view/Main/NtpBug3389
http://support.ntp.org/bin/view/Main/NtpBug3388
http://support.ntp.org/bin/view/Main/NtpBug3387
http://support.ntp.org/bin/view/Main/NtpBug3386
http://support.ntp.org/bin/view/Main/NtpBug3385
http://support.ntp.org/bin/view/Main/NtpBug3384
http://support.ntp.org/bin/view/Main/NtpBug3383
http://support.ntp.org/bin/view/Main/NtpBug3382
http://support.ntp.org/bin/view/Main/NtpBug3381
http://support.ntp.org/bin/view/Main/NtpBug3380
http://support.ntp.org/bin/view/Main/NtpBug3379
http://support.ntp.org/bin/view/Main/NtpBug3378
http://support.ntp.org/bin/view/Main/NtpBug3377
http://support.ntp.org/bin/view/Main/NtpBug3376
http://support.ntp.org/bin/view/Main/NtpBug3361
http://www.ntp.org

Severity
Medium
CVSS Score
6.5
Published
2017-03-23
Modified
2018-10-19
Category
General

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