Bug 491823

Description of problem:

SELinux is preventing firefox from loading /usr/lib/ICAClient/npica.so which requires text relocation. 

Version-Release number of selected component (if applicable):

when the citrix client is installed then selinux blocks that file. Citrix client version: ICAClient-11.0-1.i386.rpm

How reproducible:

start firefox

Steps to Reproduce:
1. install citrix client
2. start firefox
3.
  
Actual results:

this is the sealert 
Summary:

SELinux is preventing firefox from loading /usr/lib/ICAClient/npica.so which
requires text relocation.

Detailed Description:

The firefox application attempted to load /usr/lib/ICAClient/npica.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/ICAClient/npica.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 /usr/lib/ICAClient/npica.so to run correctly, you can change the
file context to textrel_shlib_t. "chcon -t textrel_shlib_t
'/usr/lib/ICAClient/npica.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/ICAClient/npica.so'"

Fix Command:

chcon -t textrel_shlib_t '/usr/lib/ICAClient/npica.so'

Additional Information:

Source Context                unconfined_u:unconfined_r:unconfined_execmem_t:s0-
                              s0:c0.c1023
Target Context                system_u:object_r:lib_t:s0
Target Objects                /usr/lib/ICAClient/npica.so [ file ]
Source                        firefox
Source Path                   /usr/lib/firefox-3.0.7/firefox
Port                          <Unknown>
Host                          pc2668-210307
Source RPM Packages           firefox-3.0.7-1.fc10
Target RPM Packages           ICAClient-11.0-1
Policy RPM                    selinux-policy-3.5.13-49.fc10
Selinux Enabled               True
Policy Type                   targeted
MLS Enabled                   True
Enforcing Mode                Enforcing
Plugin Name                   allow_execmod
Host Name                     pc2668-210307
Platform                      Linux pc2668-210307 2.6.27.19-170.2.35.fc10.i686
                              #1 SMP Mon Feb 23 13:21:22 EST 2009 i686 i686
Alert Count                   2
First Seen                    Tue 24 Mar 2009 10:33:22 AM CET
Last Seen                     Tue 24 Mar 2009 10:33:22 AM CET
Local ID                      b0071392-b3c0-4db6-af71-4898e18fb556
Line Numbers                  

Raw Audit Messages            

node=pc2668-210307 type=AVC msg=audit(1237887202.277:62): avc:  denied  { execmod } for  pid=5802 comm="firefox" path="/usr/lib/ICAClient/npica.so" dev=sda7 ino=190140 scontext=unconfined_u:unconfined_r:unconfined_execmem_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lib_t:s0 tclass=file

node=pc2668-210307 type=SYSCALL msg=audit(1237887202.277:62): arch=40000003 syscall=125 success=no exit=-13 a0=f4b000 a1=7000 a2=5 a3=bf859e30 items=0 ppid=5773 pid=5802 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=3 comm="firefox" exe="/usr/lib/firefox-3.0.7/firefox" subj=unconfined_u:unconfined_r:unconfined_execmem_t:s0-s0:c0.c1023 key=(null)





Expected results:

no warnings from selinux

Additional info: