Bug 253314 - CVE-2007-3740 CIFS should honor umask
Summary: CVE-2007-3740 CIFS should honor umask
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel
Version: 5.0
Hardware: All
OS: Linux
Target Milestone: ---
: ---
Assignee: Don Howard
QA Contact: Martin Jenner
Whiteboard: impact=important,source=redhat,report...
Depends On:
Blocks: CVE-2007-3740
TreeView+ depends on / blocked
Reported: 2007-08-17 20:05 UTC by Marcel Holtmann
Modified: 2007-11-30 22:07 UTC (History)
4 users (show)

Fixed In Version: RHSA-2007-0705
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2007-09-13 09:13:25 UTC
Target Upstream Version:

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2007:0705 0 normal SHIPPED_LIVE Important: kernel security update 2007-09-13 09:21:22 UTC

Description Marcel Holtmann 2007-08-17 20:05:51 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
    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>

Comment 1 Don Howard 2007-08-29 19:29:59 UTC
A patch for this issue has been included in build 2.6.18-8.1.9.

Comment 4 Red Hat Bugzilla 2007-09-13 09:13:25 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.


Note You need to log in before you can comment on or make changes to this bug.