Bug 1166596

Summary:	ntpd should warn when monitoring facility can't be disabled due to restrict configuration
Product:	Red Hat Enterprise Linux 6	Reporter:	Miroslav Lichvar <mlichvar>
Component:	ntp	Assignee:	Miroslav Lichvar <mlichvar>
Status:	CLOSED ERRATA	QA Contact:	Vaclav Danek <vdanek>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	6.7	CC:	ovasik, psklenar, vdanek
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	ntp-4.2.6p5-3.el6	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	1191108 (view as bug list)		Environment:
Last Closed:	2015-07-22 07:00:08 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Miroslav Lichvar 2014-11-21 10:22:42 UTC

Description of problem:
When ntpd is configured with a restrict directive using the limited option, disabling the monitoring facility with "disable monitor" will have no effect.
ntpd should print a warning to syslog when that happens to avoid unknowingly allowing the monlist amplification attack (CVE-2013-5211).

Version-Release number of selected component (if applicable):
4.2.6p5-1.el6

How reproducible:
always

Steps to Reproduce:
1. add "limited" to the default restrict lines in /etc/ntp.conf
2. add "disable monitor" to /etc/ntp.conf
3. start ntpd

Actual results:
no warning in syslog, that monitor couldn't be disabled

Expected results:
warning in syslog

Additional info:

Comment 6 errata-xmlrpc 2015-07-22 07:00:08 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2015-1459.html