This service will be undergoing maintenance at 00:00 UTC, 2017-10-23 It is expected to last about 30 minutes
Bug 818611 - X11 forwarding does not work for xguest_u
X11 forwarding does not work for xguest_u
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: selinux-policy (Show other bugs)
6.3
All Linux
high Severity medium
: rc
: ---
Assigned To: Miroslav Grepl
Miroslav Vadkerti
:
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2012-05-03 10:09 EDT by Miroslav Vadkerti
Modified: 2012-06-20 08:34 EDT (History)
4 users (show)

See Also:
Fixed In Version: selinux-policy-3.7.19-149.el6
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2012-06-20 08:34:11 EDT
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)

  None (edit)
Description Miroslav Vadkerti 2012-05-03 10:09:08 EDT
Description of problem:
When trying to use X forward to xguest_u user -> this is not possible

Version-Release number of selected component (if applicable):
selinux-policy-3.7.19-147.el6

How reproducible:
100%

Steps to Reproduce:
# be sure to have xorg-x11-xauth package installed
useradd -Z staff_u staff
useradd -Z xguest_u xguest
# now set passwords for staff and xguest users
ssh staff@localhost
export DISPLAY=0:0
ssh xguest@localhost
echo $DISPLAY
  
Actual results:
DISPLAY variable empty -> X11 forwarding not working

Expected results:
DISPLAY variable not empty and with correct content (i.e. localhost:10.0) -> X11 forwarding working

Additional info:
Comment 1 Daniel Walsh 2012-05-03 10:30:04 EDT
I don't think this is something we want to allow for the default xguest_u user.  He should not be sending his X Display to other machines.
Comment 4 Miroslav Grepl 2012-05-03 16:45:06 EDT
(In reply to comment #1)
> I don't think this is something we want to allow for the default xguest_u user.
>  He should not be sending his X Display to other machines.

Actually I was thinking about a boolean but yes, it does not make sense to allow it for xguest_u.
Comment 26 errata-xmlrpc 2012-06-20 08:34:11 EDT
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2012-0780.html

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