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Media => Mapping Center => Topic started by: Winnie the Pooh on March 20, 2009, 09:06:08 am

Title: Admin Privileges for installing gtk(radiant)
Post by: Winnie the Pooh on March 20, 2009, 09:06:08 am

This doesn't really fit here, but I downloaded a gtkradiant RPM for Linux (x32).

After installing it, I click on it and get this:

Code: [Select]

Summary:

SELinux is preventing radiant.x86 from loading /opt/gtkradiant/modules/image.so
which requires text relocation.

Detailed Description:

The radiant.x86 application attempted to load /opt/gtkradiant/modules/image.so
which requires text relocation. This is a potential security problem. Most
libraries do not need this permission. Libraries are sometimes coded incorrectly
and request this permission. The SELinux Memory Protection Tests
(http://people.redhat.com/drepper/selinux-mem.html) web page explains how to
remove this requirement. You can configure SELinux temporarily to allow
/opt/gtkradiant/modules/image.so to use relocation as a workaround, until the
library is fixed. Please file a bug report
(http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) against this package.

Allowing Access:

If you trust /opt/gtkradiant/modules/image.so to run correctly, you can change
the file context to textrel_shlib_t. "chcon -t textrel_shlib_t
'/opt/gtkradiant/modules/image.so'" You must also change the default file
context files on the system in order to preserve them even on a full relabel.
"semanage fcontext -a -t textrel_shlib_t '/opt/gtkradiant/modules/image.so'"

Fix Command:

chcon -t textrel_shlib_t '/opt/gtkradiant/modules/image.so'

Additional Information:

Source Context                unconfined_u:unconfined_r:unconfined_t:s0
Target Context                system_u:object_r:lib_t:s0
Target Objects                /opt/gtkradiant/modules/image.so [ file ]
Source                        radiant.x86
Source Path                   /opt/gtkradiant/radiant.x86
Port                          <Unknown>
Host                          KingTut.winniethepooh
Source RPM Packages           gtkradiant-1.5.0-7
Target RPM Packages           gtkradiant-1.5.0-7
Policy RPM                    selinux-policy-3.5.13-18.fc10
Selinux Enabled               True
Policy Type                   targeted
MLS Enabled                   True
Enforcing Mode                Enforcing
Plugin Name                   allow_execmod
Host Name                     KingTut.winniethepooh
Platform                      Linux KingTut.winniethepooh 2.6.27.5-117.fc10.i686
                              #1 SMP Tue Nov 18 12:19:59 EST 2008 i686 i686
Alert Count                   3
First Seen                    Thu 19 Mar 2009 11:54:18 AM HST
Last Seen                     Thu 19 Mar 2009 10:01:03 PM HST
Local ID                      127a075b-8d03-4f2b-a346-8bd40c4873e3
Line Numbers                 

Raw Audit Messages           

node=KingTut.winniethepooh type=AVC msg=audit(1237536063.134:50): avc:  denied  { execmod } for  pid=4407 comm="radiant.x86" path="/opt/gtkradiant/modules/image.so" dev=dm-0 ino=172338 scontext=unconfined_u:unconfined_r:unconfined_t:s0 tcontext=system_u:object_r:lib_t:s0 tclass=file

node=KingTut.winniethepooh type=SYSCALL msg=audit(1237536063.134:50): arch=40000003 syscall=125 success=no exit=-13 a0=1125000 a1=23000 a2=5 a3=bfb0a1f0 items=0 ppid=1 pid=4407 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="radiant.x86" exe="/opt/gtkradiant/radiant.x86" subj=unconfined_u:unconfined_r:unconfined_t:s0 key=(null)




When I type that command into the terminal, It tells me I don't have the privileges. I need to be logged in as power user I guess..

Anyone have an idea?

Title: Re: Admin Privileges for installing gtk(radiant)
Post by: Taiyo.uk on March 20, 2009, 12:01:44 pm

You have SELinux in enforcing mode, and it is disallowing text relocation. Follow the instructions under "Allowing Access" to fix this.