NTP logconfig configure Command DoS Vulnerability (CVE-2015-5194)

NTP logconfig configure Command DoS Vulnerability (CVE-2015-5194)
NTP logconfig configure Command DoS Vulnerability (CVE-2015-5194)

Release date:
Updated on:

Affected Systems:

NTP 4.x

Description:

Bugtraq id: 76475
CVE (CAN) ID: CVE-2015-5194

Network Time Protocol (NTP) is a Protocol used to synchronize computer Time. It can synchronize computers with their servers or clock sources (such as quartzels and GPS.

Ntpd crashes due to uninitialized variables when handling malformed logconfig configuration commands. Remote attackers can exploit this vulnerability to create infinite loops and cause DOS.

<* Source: Miroslav Lichvar
*>

Suggestion:

Vendor patch:

NTP
---
The vendor has released a patch to fix this security problem. Please download it from the vendor's homepage:

Http://bk.ntp.org/ntp-dev? PAGE = patch & REV = 4c4fc141LwvcoGp-lLGhkAFp3ZvtrA

CentOS NTP server installation and configuration

NTP servers in Linux

NTP client configurations for multiple operating systems

Build an enterprise-level NTP Time Server

Set up an ntp time synchronization server in Linux

Enable NTP time server in CentOS 6.3

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