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:

Detection Type:
Remote Banner Unreliable

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.

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

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)


CVSS Score

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