Bug 716558 - SELINUX text relocation error with GSK7 module
SELINUX text relocation error with GSK7 module
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: selinux-policy (Show other bugs)
s390x Linux
unspecified Severity medium
: rc
: ---
Assigned To: Miroslav Grepl
BaseOS QE Security Team
Depends On:
  Show dependency treegraph
Reported: 2011-06-24 17:11 EDT by art hallock
Modified: 2011-11-10 07:43 EST (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2011-11-10 07:43:15 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description art hallock 2011-06-24 17:11:44 EDT
Description of problem:

I installed IBM Tivoli Access Manager (TAM) 6.1.1 while enforcement was set to passive. When enforcement is set on, the TAM services fail to start. I see this message in the messages file.

Jun 19 13:34:52 stamsr11 setroubleshoot: SELinux is preventing pdmgrd from loading /usr/local/ibm/gsk7/icc/osslib/libcrypto.so.0.9.7 which requires text relocation. For complete SELinux messages. run sealert -l 508b672b-8599-4c39-9617-d241df78b5fd 

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

How reproducible: Easily reproducible.

Steps to Reproduce:
1. Turn on SELINUX enforcement
2. Is PD_START START command to start TAM services
Actual results:

The SELinux error shown above.

Expected results:

TAM should start successfully.

Additional info:

I'll be openning a problem report with IBM regarding this problem.

Here is the descriptive messages from running the sealert command:

[root@stamsr11 log]# sealert -l 508b672b-8599-4c39-9617-d241df78b5fd


SELinux is preventing pdmgrd from loading
/usr/local/ibm/gsk7/icc/osslib/libcrypto.so.0.9.7 which requires text

Detailed Description:

[SELinux is in permissive mode, the operation would have been denied but was
permitted due to permissive mode.]

The pdmgrd application attempted to load
/usr/local/ibm/gsk7/icc/osslib/libcrypto.so.0.9.7 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/local/ibm/gsk7/icc/osslib/libcrypto.so.0.9.7 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/local/ibm/gsk7/icc/osslib/libcrypto.so.0.9.7 to run correctly,
you can change the file context to textrel_shlib_t. "chcon -t textrel_shlib_t
'/usr/local/ibm/gsk7/icc/osslib/libcrypto.so.0.9.7'" 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

The following command will allow this access:

chcon -t textrel_shlib_t '/usr/local/ibm/gsk7/icc/osslib/libcrypto.so.0.9.7'

Additional Information:

Source Context                user_u:system_r:unconfined_t:s0
Target Context                system_u:object_r:lib_t:s0
Target Objects                /usr/local/ibm/gsk7/icc/osslib/libcrypto.so.0.9.7
                              [ file ]
Source                        ldapsearch
Source Path                   /opt/ibm/ldap/V6.1/bin/32/ldapsearch
Port                          <Unknown>
Host                          stamsr11.wtc.opm.gov
Source RPM Packages           PDMgr-PD-6.1.1-0
Target RPM Packages           gsk7bas-7.0-4.28
Policy RPM                    selinux-policy-2.4.6-300.el5
Selinux Enabled               True
Policy Type                   targeted
MLS Enabled                   True
Enforcing Mode                Permissive
Plugin Name                   allow_execmod
Host Name                     stamsr11.wtc.opm.gov
Platform                      Linux stamsr11.wtc.opm.gov 2.6.18-238.9.1.el5 #1
                              SMP Fri Mar 18 14:40:59 EDT 2011 s390x s390x
Alert Count                   135
First Seen                    Fri Jun 17 16:53:06 2011
Last Seen                     Sun Jun 19 13:34:52 2011
Local ID                      508b672b-8599-4c39-9617-d241df78b5fd
Line Numbers

Raw Audit Messages
Comment 1 Daniel Walsh 2011-06-24 17:37:01 EDT
The alert tells you what to do.

Did you open a bug report with IBM to fix their library?

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