Bug 537963

Zusammenfassung:

SELinux is preventing /usr/bin/mod_install from loading /usr/lib/libtfmessbsp.so
which requires text relocation.

Detaillierte Beschreibung:

The mod_install application attempted to load /usr/lib/libtfmessbsp.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/libtfmessbsp.so to use relocation as a workaround, until the library is
fixed. Please file a bug report.

Zugriff erlauben:

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

Fixer Befehl:

chcon -t textrel_shlib_t '/usr/lib/libtfmessbsp.so'

Zusätzliche Informationen:

Quellkontext                  unconfined_u:system_r:rpm_script_t:s0-s0:c0.c1023
Zielkontext                   system_u:object_r:lib_t:s0
Zielobjekte                   /usr/lib/libtfmessbsp.so [ file ]
Quelle                        mod_install
Quellen-Pfad                  /usr/bin/mod_install
Port                          <Unbekannt>
Host                          (removed)
Quellen-RPM-Pakete            libbiometrics-1.2.2-1.sg
Ziel-RPM-Pakete               libbiometrics-tfmess-1.0-1.sg
RPM-Richtlinie                selinux-policy-3.6.32-41.fc12
SELinux aktiviert             True
Richtlinienversion            targeted
MLS aktiviert                 True
Enforcing-Modus               Enforcing
Plugin-Name                   allow_execmod
Hostname                      (removed)
Plattform                     Linux (removed) 2.6.31.5-127.fc12.x86_64
                              #1 SMP Sat Nov 7 21:11:14 EST 2009 x86_64 x86_64
Anzahl der Alarme             1
Zuerst gesehen                Di 17 Nov 2009 00:54:08 CET
Zuletzt gesehen               Di 17 Nov 2009 00:54:08 CET
Lokale ID                     94cb5d90-cbf0-427d-8e55-bc0c3f762412
Zeilennummern                 

Raw-Audit-Meldungen           

node=(removed) type=AVC msg=audit(1258415648.500:32): avc:  denied  { execmod } for  pid=2234 comm="mod_install" path="/usr/lib/libtfmessbsp.so" dev=sda3 ino=96584 scontext=unconfined_u:system_r:rpm_script_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lib_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1258415648.500:32): arch=40000003 syscall=125 success=no exit=-13 a0=24f000 a1=e4000 a2=5 a3=ff8001b0 items=0 ppid=2233 pid=2234 auid=500 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=1 comm="mod_install" exe="/usr/bin/mod_install" subj=unconfined_u:system_r:rpm_script_t:s0-s0:c0.c1023 key=(null)



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

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