Bug 1189410

Summary:	ntp: ACL bypass via ::1 IPv6 address spoofing
Product:	[Other] Security Response	Reporter:	Martin Prpič <mprpic>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	jrusnack, mlichvar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	ntp 4.2.8p1	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-02-05 09:49:54 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1189411

Description Martin Prpič 2015-02-05 09:18:25 UTC

It was found that NTP's access control implementation did not properly restrict access originating from the ::1 IPv6 address. A remote attacker could spoof the ::1 address and bypass intended access restrictions on the system.

External References:

http://support.ntp.org/bin/view/Main/SecurityNotice#1_can_be_spoofed_on_some_OSes_so

Comment 1 Martin Prpič 2015-02-05 09:21:53 UTC

Created ntp tracking bugs for this issue:

Affects: fedora-all [bug 1189413]

Comment 2 Martin Prpič 2015-02-05 09:49:54 UTC


*** This bug has been marked as a duplicate of bug 1184572 ***