Bug 560294

Sammanfattning:

SELinux is preventing /opt/real/RealPlayer/realplay.bin from loading
/opt/real/RealPlayer/plugins/swfrender.so which requires text relocation.

Detaljerad beskrivning:

The realplay.bin application attempted to load
/opt/real/RealPlayer/plugins/swfrender.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
/opt/real/RealPlayer/plugins/swfrender.so to use relocation as a workaround,
until the library is fixed. Please file a bug report.

Att tillåta åtkomst:

If you trust /opt/real/RealPlayer/plugins/swfrender.so to run correctly, you can
change the file context to textrel_shlib_t. "chcon -t textrel_shlib_t
'/opt/real/RealPlayer/plugins/swfrender.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
'/opt/real/RealPlayer/plugins/swfrender.so'"

Lagningskommando:

chcon -t textrel_shlib_t '/opt/real/RealPlayer/plugins/swfrender.so'

Ytterligare information:

Källkontext                  unconfined_u:unconfined_r:unconfined_execmem_t:s0-
                              s0:c0.c1023
Målkontext                   system_u:object_r:lib_t:s0
Målobjekt                    /opt/real/RealPlayer/plugins/swfrender.so [ file ]
Källa                        realplay.bin
Källsökväg                 /opt/real/RealPlayer/realplay.bin
Port                          <Okänd>
Värd                         (removed)
Käll-RPM-paket               RealPlayer-11.0.2.1744-20091006
Mål-RPM-paket                RealPlayer-11.0.2.1744-20091006
Policy-RPM                    selinux-policy-3.6.32-78.fc12
SELinux aktiverat             True
Policytyp                     targeted
Verkställande läge          Enforcing
Insticksmodulnamn             allow_execmod
Värdnamn                     (removed)
Plattform                     Linux (removed)
                              2.6.31.12-174.2.3.fc12.i686.PAE #1 SMP Mon Jan 18
                              20:06:44 UTC 2010 i686 i686
Antal larm                    6
Först sedd                   mån 18 jan 2010 12.33.29
Senast sedd                   lör 30 jan 2010 20.50.36
Lokalt ID                     083d3363-1a67-4469-93f5-4952fa02a261
Radnummer                     

Råa granskningsmeddelanden   

node=(removed) type=AVC msg=audit(1264881036.933:18): avc:  denied  { execmod } for  pid=1546 comm="realplay.bin" path="/opt/real/RealPlayer/plugins/swfrender.so" dev=dm-0 ino=80769 scontext=unconfined_u:unconfined_r:unconfined_execmem_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lib_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1264881036.933:18): arch=40000003 syscall=125 success=no exit=-13 a0=1a0e000 a1=8c000 a2=5 a3=bf8cfc30 items=0 ppid=1540 pid=1546 auid=501 uid=501 gid=501 euid=501 suid=501 fsuid=501 egid=501 sgid=501 fsgid=501 tty=(none) ses=1 comm="realplay.bin" exe="/opt/real/RealPlayer/realplay.bin" subj=unconfined_u:unconfined_r:unconfined_execmem_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  selinux-policy-3.6.32-78.fc12,allow_execmod,realplay.bin,unconfined_execmem_t,lib_t,file,execmod
audit2allow suggests:

#============= unconfined_execmem_t ==============
#!!!! This avc can be allowed using the boolean 'allow_execmod'

allow unconfined_execmem_t lib_t:file execmod;