Bug 275881 (CVE-2007-3740)

Summary:	CVE-2007-3740 CIFS should honor umask
Product:	[Other] Security Response	Reporter:	Marcel Holtmann <holtmann>
Component:	vulnerability	Assignee:	Jeff Layton <jlayton>
Status:	CLOSED ERRATA	QA Contact:	Martin Jenner <mjenner>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	coughlan, kreilly, staubach, steved
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-11-01 13:34:12 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:	246667, 253314, 293121, 293131
Bug Blocks:

Description Marcel Holtmann 2007-09-04 09:25:40 UTC

CIFS apparently does not currently honor the umask for a task. There's an
upstream patch to make it do so:

commit 3ce53fc4c57603d99c330a6ee2fe96d94f2d350f
Author: Steve French <sfrench.com>
Date:   Fri Jun 8 14:55:14 2007 +0000

    [CIFS] CIFS should honour umask
    
    This patch makes CIFS honour a process' umask like other filesystems.
    Of course the server is still free to munge the permissions if it wants
    to; but the client will send the "right" permissions to begin with.
    
    A few caveats:
    
    1) It only applies to filesystems that have CAP_UNIX (aka support unix
    extensions)
    2) It applies the correct mode to the follow up CIFSSMBUnixSetPerms()
    after remote creation
    
    When mode to CIFS/NTFS ACL mapping is complete we can do the
    same thing for that case for servers which do not
    support the Unix Extensions.
    
    Signed-off-by: Matt Keenen <matt>
    Signed-off-by: Steve French <sfrench.com>