Bug 170777

Summary:	CVE-2005-2973 ipv6 infinite loop
Product:	Red Hat Enterprise Linux 2.1	Reporter:	Mark J. Cox <mjc>
Component:	kernel	Assignee:	Don Howard <dhoward>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	medium
Version:	2.1	CC:	security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:	reported=20051014,source=vendorsec,impact=important,public=20051004
Fixed In Version:	RHSA-2006-0191	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-02-01 17:56:50 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:	143573

Description Mark J. Cox 2005-10-14 15:09:18 UTC

+++ This bug was initially created as a clone of Bug #170772 +++

Tetsuo Handa reported a infinite loop allowing a local user to crash a ipv6
enabled kernel.

http://linux.bkbits.net:8080/linux-2.6/cset@4342df67SNhRx_3FGhUrrU-FXLlQIA

When looking at this update I noticed another patch that we might be missing,
not checked into it's ability to have a security relevance:

http://linux.bkbits.net:8080/linux-2.6/cset@4341a0f6Dq8vTKy1SDtDVxuJUrQaRg

Comment 1 Don Howard 2005-10-18 18:54:01 UTC

See bug #170772 for a reproducer. 

cat 65536 > /proc/sys/fs/file-max
modprobe ipv6
then run the reproducer.

Comment 5 Red Hat Bugzilla 2006-02-01 17:56:50 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-2006-0191.html