+++ 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
*** Bug 174809 has been marked as a duplicate of this bug. ***
A fix for this problem has just been committed to the RHEL3 E7 patch pool this evening (in kernel version 2.4.21-37.0.1.EL).
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2006-0140.html
A fix for this problem has also been committed to the RHEL3 U7 patch pool this evening (in kernel version 2.4.21-39.EL).