Bug 540590

Summary:

SELinux is preventing /usr/bin/nautilus from loading
/usr/lib/gstreamer-0.10/libgstflump3dec.so which requires text relocation.

Detailed Description:

The nautilus application attempted to load
/usr/lib/gstreamer-0.10/libgstflump3dec.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
/usr/lib/gstreamer-0.10/libgstflump3dec.so to use relocation as a workaround,
until the library is fixed. Please file a bug report.

Allowing Access:

If you trust /usr/lib/gstreamer-0.10/libgstflump3dec.so to run correctly, you
can change the file context to textrel_shlib_t. "chcon -t textrel_shlib_t
'/usr/lib/gstreamer-0.10/libgstflump3dec.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
'/usr/lib/gstreamer-0.10/libgstflump3dec.so'"

Fix Command:

chcon -t textrel_shlib_t '/usr/lib/gstreamer-0.10/libgstflump3dec.so'

Additional Information:

Source Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Context                system_u:object_r:lib_t:s0
Target Objects                /usr/lib/gstreamer-0.10/libgstflump3dec.so [ file
                              ]
Source                        totem
Source Path                   /usr/bin/totem
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           nautilus-2.28.1-4.fc12
Target RPM Packages           fluendo-codecs-mp3-8-3
Policy RPM                    selinux-policy-3.6.32-41.fc12
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   allow_execmod
Host Name                     (removed)
Platform                      Linux (removed) 2.6.31.5-127.fc12.i686 #1 SMP Sat Nov
                              7 21:41:45 EST 2009 i686 i686
Alert Count                   25
First Seen                    Sun 22 Nov 2009 11:32:01 PM EST
Last Seen                     Mon 23 Nov 2009 01:34:33 PM EST
Local ID                      1495ad83-3548-4a06-9e79-7e79435505ca
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1259001273.145:26087): avc:  denied  { execmod } for  pid=1981 comm="nautilus" path="/usr/lib/gstreamer-0.10/libgstflump3dec.so" dev=sdb5 ino=88825 scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lib_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1259001273.145:26087): arch=40000003 syscall=125 success=no exit=-13 a0=6f8b000 a1=d1000 a2=5 a3=bfbafec0 items=0 ppid=1784 pid=1981 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="nautilus" exe="/usr/bin/nautilus" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  selinux-policy-3.6.32-41.fc12,allow_execmod,totem,unconfined_t,lib_t,file,execmod
audit2allow suggests:

#============= unconfined_t ==============
allow unconfined_t lib_t:file execmod;