Summary:

SELinux is preventing /home/thanhbv/Downloads/firefox-3.6b3/firefox-bin from
loading
/home/thanhbv/.mozilla/firefox/insc7pg8.default/extensions/{340c2bbc-ce74-4362-90b5-7c26312808ef}/platform/Linux_x86-gcc3/components/WeaveCrypto.so
which requires text relocation.

Detailed Description:

The firefox-bin application attempted to load
/home/thanhbv/.mozilla/firefox/insc7pg8.default/extensions/{340c2bbc-ce74-4362-90b5-7c26312808ef}/platform/Linux_x86-gcc3/components/WeaveCrypto.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
/home/thanhbv/.mozilla/firefox/insc7pg8.default/extensions/{340c2bbc-ce74-4362-90b5-7c26312808ef}/platform/Linux_x86-gcc3/components/WeaveCrypto.so
to use relocation as a workaround, until the library is fixed. Please file a bug
report.

Allowing Access:

If you trust
/home/thanhbv/.mozilla/firefox/insc7pg8.default/extensions/{340c2bbc-ce74-4362-90b5-7c26312808ef}/platform/Linux_x86-gcc3/components/WeaveCrypto.so
to run correctly, you can change the file context to textrel_shlib_t. "chcon -t
textrel_shlib_t
'/home/thanhbv/.mozilla/firefox/insc7pg8.default/extensions/{340c2bbc-ce74-4362-90b5-7c26312808ef}/platform/Linux_x86-gcc3/components/WeaveCrypto.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
'/home/thanhbv/.mozilla/firefox/insc7pg8.default/extensions/{340c2bbc-ce74-4362-90b5-7c26312808ef}/platform/Linux_x86-gcc3/components/WeaveCrypto.so'"

Fix Command:

chcon -t textrel_shlib_t
'/home/thanhbv/.mozilla/firefox/insc7pg8.default/extensions/{340c2bbc-ce74-4362-90b5-7c26312808ef}/platform/Linux_x86-gcc3/components/WeaveCrypto.so'

Additional Information:

Source Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Context                unconfined_u:object_r:mozilla_home_t:s0
Target Objects                /home/thanhbv/.mozilla/firefox/insc7pg8.default/ex
                              tensions/{340c2bbc-ce74-4362-90b5-7c26312808ef}/pl
                              atform/Linux_x86-gcc3/components/WeaveCrypto.so [
                              file ]
Source                        firefox-bin
Source Path                   /home/thanhbv/Downloads/firefox-3.6b3/firefox-bin
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.32-49.fc12
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   allow_execmod
Host Name                     (removed)
Platform                      Linux (removed) 2.6.31.6-145.fc12.i686 #1 SMP
                              Sat Nov 21 16:28:23 EST 2009 i686 i686
Alert Count                   1
First Seen                    Sat 28 Nov 2009 09:48:11 AM ICT
Last Seen                     Sat 28 Nov 2009 09:48:11 AM ICT
Local ID                      51bc8a7a-652a-4fec-b0f3-9ce7c1dda751
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1259376491.736:20): avc:  denied  { execmod } for  pid=7418 comm="firefox-bin" path="/home/thanhbv/.mozilla/firefox/insc7pg8.default/extensions/{340c2bbc-ce74-4362-90b5-7c26312808ef}/platform/Linux_x86-gcc3/components/WeaveCrypto.so" dev=sda7 ino=103870 scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:mozilla_home_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1259376491.736:20): arch=40000003 syscall=125 success=no exit=-13 a0=1e92000 a1=8000 a2=5 a3=bfd10e40 items=0 ppid=7414 pid=7418 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=2 comm="firefox-bin" exe="/home/thanhbv/Downloads/firefox-3.6b3/firefox-bin" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  selinux-policy-3.6.32-49.fc12,allow_execmod,firefox-bin,unconfined_t,mozilla_home_t,file,execmod
audit2allow suggests:

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