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Bug 217011

Summary:	CVE-2006-6056 SELinux superblock_doinit denial of service
Product:	Red Hat Enterprise Linux 4	Reporter:	Marcel Holtmann <holtmann>
Component:	kernel	Assignee:	Eric Paris <eparis>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	low	Docs Contact:
Priority:	medium
Version:	4.0	CC:	esandeen, jbaron, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	impact=low,source=internet,reported=20061114,public=20061114
Fixed In Version:	RHSA-2007-0014	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-01-30 14:43:38 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 Marcel Holtmann 2006-11-23 06:06:18 UTC

From MOKB-14-11-2006:

http://projects.info-pull.com/mokb/MOKB-14-11-2006.html

Failure to handle mounting of corrupt filesystem streams may lead to a local
denial of service condition when SELinux hooks are enabled. This particular
vulnerability is caused by a null pointer dereference in the superblock_doinit
function.

Comment 1 Eric Paris 2006-11-30 15:34:12 UTC

Not an SELinux problem.  It's a problem in HFS return codes from failure. 
Already fixed upstream by Eric Sandeen.  Will discuss which of us should own the
local bug (we both know the fix just fine)

Comment 3 Jason Baron 2006-12-13 19:19:12 UTC

committed in stream U5 build 42.31. A test kernel with this patch is available
from http://people.redhat.com/~jbaron/rhel4/

Comment 4 Jason Baron 2006-12-18 21:54:44 UTC

committed in stream E5 build 42.0.4

Comment 6 Mike Gahagan 2007-01-19 19:08:47 UTC

verified using the MOKB hfs image.

Comment 8 Red Hat Bugzilla 2007-01-30 14:43:38 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-2007-0014.html