Bug 192635

Summary:	CVE-2006-1857 SCTP HB-ACK chunk overflow
Product:	Red Hat Enterprise Linux 4	Reporter:	Marcel Holtmann <holtmann>
Component:	kernel	Assignee:	Neil Horman <nhorman>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	4.0	CC:	davem, jbaron, security-response-team, tgraf
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	impact=moderate,source=vendorsec,reported=20060519,public=20060519
Fixed In Version:	RHSA-2006-0575	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-08-10 23:22:11 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:	181409

Description Marcel Holtmann 2006-05-22 10:00:59 UTC

If SCTP receives a badly formatted HB-ACK chunk, it is possible that we may
access invalid memory and potentially have a buffer overflow.

The upstream fix can be found here:

http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=dd2d1c6f2958d027e4591ca5d2a04dfe36ca6512

Comment 1 Marcel Holtmann 2006-05-22 10:06:55 UTC

This is the link for the real upstream fix:

http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a601266e4f3c479790f373c2e3122a766d123652

Comment 6 Jason Baron 2006-06-19 20:27:30 UTC

committed in stream U4 build 39.1. A test kernel with this patch is available
from http://people.redhat.com/~jbaron/rhel4/

Comment 8 Mike Gahagan 2006-07-14 20:40:32 UTC

Patch is in -42.EL.

Comment 10 Red Hat Bugzilla 2006-08-10 23:22:17 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-2006-0575.html