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Bug 249016

Summary:	CVE-2006-5297 Multiple mutt tempfile race conditions
Product:	Red Hat Enterprise Linux 2.1	Reporter:	Mark J. Cox <mjc>
Component:	mutt	Assignee:	Miroslav Lichvar <mlichvar>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	medium
Version:	2.1	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
URL:	http://marc.theaimsgroup.com/?l=mutt-dev&m=115999486426292&w=2
Whiteboard:	source=mutt-dev,reported=20061004,impact=low,public=20061004
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-09-07 17:26:16 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 2007-07-20 12:13:33 UTC

Clone for RHEL2.1

+++ This bug was initially created as a clone of Bug #211085 +++

Description of problem:

Mutt contains two race condition issues in its temporary file handling system.
First one is caused by O_EXCL problem on NFS volumes (CVE-2006-5297). Second one
is lack of check of file mode and ownership of temporary file after file
creation attempt (CVE-2006-5298).                                              
                                        

Version-Release number of selected component (if applicable):

All mutt versions prior to 1.5.12
mutt 1.4.1-12.el4

How reproducible:

Racing with mutt wile it attempts to create and use a temporary file.
  
Fix:

This [1] is how was the issue fixed in mutt's CVS, following the discussion and
patch proposal in mutt-dev mailing list [2]. Eventually review.

[1] http://dev.mutt.org/cgi-bin/viewcvs.cgi/mutt/lib.c?r1=3.20&r2=3.21
[2] http://marc.theaimsgroup.com/?l=mutt-dev&m=115999486426292&w=2

-- Additional comment from lkundrak on 2006-10-17 05:30 EST --
Also Affects RHEL 2.1, RHEL 3, RHEL 4, and FC 1 to FC 5.

-- Additional comment from mlichvar on 2006-10-24 12:03 EST --
The O_EXCL on NFS issue fixed in FC5, FC6, devel.

The second issue is not actually a bug as explained later in the mailing list.

-- Additional comment from lkundrak on 2007-05-24 13:15 EST --
PM: please ACK. This will get fixed in RHSA-2007:0386 alongside
bug 241247: CVE-2007-2683 Buffer overflow in mutt's gecos structure handling and
bug 241191: CVE-2007-1558 fetchmail, mutt: APOP vulnerability

Comment 1 Josh Bressers 2007-09-07 17:26:16 UTC

This flaw has been rated as having a low severity by the Red Hat Security
Response Team.  More information about this rating can be found here:
http://www.redhat.com/security/updates/classification/

The risks associated with fixing this bug are greater than the low severity
security risk. We therefore currently have no plans to fix this flaw in Red
Hat Enterprise Linux 2.1 which is in maintenance mode.

If you believe this judgement to be in error, please reopen this bug with an
appropriate comment.