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# @author Dan Walsh <dwalsh@redhat.com>
#
# Copyright (C) 2009 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
import gettext
translation=gettext.translation('setroubleshoot-plugins', fallback=True)
_=translation.gettext
from setroubleshoot.util import *
from setroubleshoot.Plugin import Plugin
import re
import os
class plugin(Plugin):
summary =_('''
SELinux has prevented vbetool from performing an unsafe memory operation.
''')
problem_description = _('''
SELinux denied an operation requested by $SOURCE, a program used
to alter video hardware state. This program is known to use
an unsafe operation on system memory but so are a number of
malware/exploit programs which masquerade as vbetool. This tool is used to
reset video state when a machine resumes from a suspend. If your machine
is not resuming properly your only choice is to allow this
operation and reduce your system security against such malware.
''')
fix_description = _('''
If you decide to continue to run the program in question you will need
to allow this operation. This can be done on the command line by
executing:
# setsebool -P mmap_low_allowed 1
''')
fix_cmd = "/usr/sbin/setsebool -P mmap_low_allowed 1"
if_text = _("If you want to ignore this AVC because it is dangerous and your machine seems to be working correctly.")
then_text = _("you must tell SELinux about this by enabling the vbetool_mmap_zero_ignore boolean.")
do_text = "# setsebool -P vbetool_mmap_zero_ignore 1"
def __init__(self):
Plugin.__init__(self, __name__)
self.fixable=True
self.button_text=_("Turn off memory protection")
def analyze(self, avc):
if (avc.has_any_access_in(['mmap_zero']) and
avc.matches_source_types(['vbetool_t']) and
os.stat(avc.spath).st_uid == 0):
# MATCH
return self.report()
return None
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| __pycache__ | Folder | 0755 |
|
|
| __init__.py | File | 2 B | 0644 |
|
| allow_anon_write.py | File | 3.25 KB | 0644 |
|
| allow_execheap.py | File | 2.39 KB | 0644 |
|
| allow_execmem.py | File | 3.07 KB | 0644 |
|
| allow_execmod.py | File | 5.41 KB | 0644 |
|
| allow_execstack.py | File | 4.73 KB | 0644 |
|
| allow_ftpd_use_cifs.py | File | 3.41 KB | 0644 |
|
| allow_ftpd_use_nfs.py | File | 3.3 KB | 0644 |
|
| associate.py | File | 2.15 KB | 0644 |
|
| automount_exec_config.py | File | 2.66 KB | 0644 |
|
| bind_ports.py | File | 2.81 KB | 0644 |
|
| catchall.py | File | 2.89 KB | 0644 |
|
| catchall_boolean.py | File | 2.89 KB | 0644 |
|
| catchall_labels.py | File | 2.2 KB | 0644 |
|
| chrome.py | File | 2.6 KB | 0644 |
|
| connect_ports.py | File | 2.68 KB | 0644 |
|
| cvs_data.py | File | 2.58 KB | 0644 |
|
| dac_override.py | File | 2.1 KB | 0644 |
|
| device.py | File | 2.74 KB | 0644 |
|
| disable_ipv6.py | File | 1.62 KB | 0644 |
|
| file.py | File | 3.21 KB | 0644 |
|
| filesystem_associate.py | File | 2.46 KB | 0644 |
|
| httpd_can_sendmail.py | File | 1.93 KB | 0644 |
|
| httpd_unified.py | File | 2.86 KB | 0644 |
|
| httpd_write_content.py | File | 2.11 KB | 0644 |
|
| kernel_modules.py | File | 2.74 KB | 0644 |
|
| leaks.py | File | 2.49 KB | 0644 |
|
| mmap_zero.py | File | 2.33 KB | 0644 |
|
| mounton.py | File | 2.48 KB | 0644 |
|
| mozplugger.py | File | 2.79 KB | 0644 |
|
| mozplugger_remove.py | File | 2.17 KB | 0644 |
|
| openvpn.py | File | 2.76 KB | 0644 |
|
| public_content.py | File | 2.57 KB | 0644 |
|
| qemu_blk_image.py | File | 2.55 KB | 0644 |
|
| qemu_file_image.py | File | 2.88 KB | 0644 |
|
| restorecon.py | File | 5.34 KB | 0644 |
|
| restorecon_source.py | File | 3.01 KB | 0644 |
|
| rsync_data.py | File | 2.53 KB | 0644 |
|
| samba_share.py | File | 2.94 KB | 0644 |
|
| sandbox_connect.py | File | 2.23 KB | 0644 |
|
| selinuxpolicy.py | File | 3.09 KB | 0644 |
|
| setenforce.py | File | 2.39 KB | 0644 |
|
| sshd_root.py | File | 2.08 KB | 0644 |
|
| swapfile.py | File | 2.23 KB | 0644 |
|
| sys_module.py | File | 2.35 KB | 0644 |
|
| sys_resource.py | File | 2.62 KB | 0644 |
|
| vbetool.py | File | 2.52 KB | 0644 |
|
| wine.py | File | 2.92 KB | 0644 |
|
| xen_image.py | File | 2.8 KB | 0644 |
|