Description of problem:
Was browsing a folder with media file in nautilus.
SELinux is preventing /usr/bin/totem-video-thumbnailer from 'write' accesses on the sock_file /var/lib/sss/pipes/nss.

*****  Plugin catchall (100. confidence) suggests  ***************************

If you believe that totem-video-thumbnailer should be allowed write access on the nss sock_file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep totem-video-thu /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023
Target Context                system_u:object_r:sssd_var_lib_t:s0
Target Objects                /var/lib/sss/pipes/nss [ sock_file ]
Source                        totem-video-thu
Source Path                   /usr/bin/totem-video-thumbnailer
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           totem-3.6.3-2.fc18.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.11.1-73.fc18.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.7.4-204.fc18.x86_64 #1 SMP Wed
                              Jan 23 16:44:29 UTC 2013 x86_64 x86_64
Alert Count                   27
First Seen                    2013-02-03 22:54:50 CET
Last Seen                     2013-02-03 22:54:59 CET
Local ID                      d8b3f6cd-1289-4fca-af59-d20df33efb51

Raw Audit Messages
type=AVC msg=audit(1359928499.505:923): avc:  denied  { write } for  pid=17149 comm="totem-video-thu" name="nss" dev="dm-2" ino=525030 scontext=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sssd_var_lib_t:s0 tclass=sock_file


type=SYSCALL msg=audit(1359928499.505:923): arch=x86_64 syscall=connect success=no exit=EACCES a0=4 a1=7fff54751dd0 a2=6e a3=7f42999a81e0 items=0 ppid=6813 pid=17149 auid=1236200002 uid=1236200002 gid=1236200002 euid=1236200002 suid=1236200002 fsuid=1236200002 egid=1236200002 sgid=1236200002 fsgid=1236200002 ses=2 tty=(none) comm=totem-video-thu exe=/usr/bin/totem-video-thumbnailer subj=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 key=(null)

Hash: totem-video-thu,thumb_t,sssd_var_lib_t,sock_file,write

audit2allow

#============= thumb_t ==============
allow thumb_t sssd_var_lib_t:sock_file write;

audit2allow -R

#============= thumb_t ==============
allow thumb_t sssd_var_lib_t:sock_file write;


Additional info:
hashmarkername: setroubleshoot
kernel:         3.7.4-204.fc18.x86_64
type:           libreport