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Bug 171383

Summary:	CVE-2005-3272 bridge poisoning
Product:	Red Hat Enterprise Linux 4	Reporter:	Mark J. Cox <mjc>
Component:	kernel	Assignee:	Thomas Graf <tgraf>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	4.0	CC:	davem, jbaron, rkhan, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	public=20050529,impact=moderate
Fixed In Version:	RHSA-2006-0493	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-05-24 09:27:21 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 2005-10-21 12:12:20 UTC

CVE-2005-3272 states:
        Linux kernel before 2.6.12 allows remote attackers to poison
        the bridge forwarding table using frames that have already
        been dropped by filtering, which can cause the bridge to
        forward spoofed packets.

http://linux.bkbits.net:8080/linux-2.6/cset@429a310bRFOXOmZvKaGXW8A5Qd9F1A

This looks like it may affect RHEL4.  I've assigned this impact=moderate but it
could be low, please advise after a technical review of the flaw.

Comment 1 Thomas Graf 2006-05-11 14:44:16 UTC

It does affect RHEL4, the fix is easy enough, I think we should put this into U4.

Comment 3 Marcel Holtmann 2006-05-16 07:09:29 UTC

The upstream fix can be found here:

http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=85967bb46dd1f8f2c49b85a313866c00ac0c9b59

Comment 7 Jason Baron 2006-05-22 19:19:41 UTC

committed in stream U4 build 36.1. A test kernel with this patch is available
from http://people.redhat.com/~jbaron/rhel4/

Comment 9 Red Hat Bugzilla 2006-05-24 09:27:21 UTC

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-2006-0493.html