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Bug 174809

Summary:	CVE-2002-2185 IGMP DoS
Product:	Red Hat Enterprise Linux 3	Reporter:	Mark J. Cox <mjc>
Component:	kernel	Assignee:	Thomas Graf <tgraf>
Status:	CLOSED DUPLICATE	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	3.0	CC:	petrides, rkhan
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	public=20020625,impact=moderate
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2005-12-02 22:45:18 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:

Description Mark J. Cox 2005-12-02 13:56:28 UTC

+++ This bug was initially created as a clone of Bug #174807 +++

http://www.cs.ucsb.edu/~krishna/igmp_dos/

With IGMP version 1 and 2 it is possible to inject a unicast report to a client
which will make it ignore multicast reports sent later by the router.

The fix is to only accept the report if is was sent to a multicast or unicast
address.  Fix from David Stevens at IBM and will be made upstream shortly.

-- Additional comment from mjc on 2005-12-02 08:53 EST --
Created an attachment (id=121751)
proposed upstream patch

Comment 1 Ernie Petrides 2005-12-02 22:45:18 UTC

This is apparently an accidental dup entry of bug 174808.

*** This bug has been marked as a duplicate of 174808 ***