Red Hat Bugzilla – Bug 1279006
Specifying the MLS/MCS Security Level to run an X based sandbox with, fails
Last modified: 2015-11-21 21:23:15 EST
Description of problem:
Trying to specify an mls/mcs security level to run an X based sandbox fails
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Try to start and X based sandbox
sandbox -X -t sandbox_web_t -l s0:c455,c394 -H ~/firefox_home/ -T ~/firefox_tmp/ firefox
/usr/bin/sandbox:440: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
from gi.repository import Gtk
grep: /home/user/.sandboxrc: Permission denied
mkdir: cannot create directory ‘/home/user’: Permission denied
/usr/share/sandbox/sandboxX.sh: line 10: /home/user/.config/openbox/rc.xml: Permission denied
type=SELINUX_ERR msg=audit(1446866347.983:1067): op=security_bounded_transition seresult=denied oldcontext=unconfined_u:unconfined_r:sandbox_web_t:s0:c394,c455 newcontext=unconfined_u:unconfined_r:sandbox_xserver_t:s0:c394,c455
The X based sandbox starts just as it would if the level was left to be random.
It looks there is more issues and given MCS is not propagated. The mentioned AVC does not block it. There are another AVCs caused by this reproducer.
policycoreutils-2.4-17.fc23 has been pushed to the Fedora 23 testing repository. If problems still persist, please make note of it in this bug report.
If you want to test the update, you can install it with
$ su -c 'dnf --enablerepo=updates-testing update policycoreutils'
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2015-2d1eee0eb5
policycoreutils-2.4-17.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.