Description of problem:
This SELinux warning popped up after opening a folder containing PDF files with Nautilus.
SELinux is preventing /usr/bin/evince-thumbnailer from 'append' accesses on the unix_stream_socket unix_stream_socket.

*****  Plugin leaks (86.2 confidence) suggests  ******************************

If si desidera ignorare che evince-thumbnailer tenti l'accesso append su unix_stream_socket unix_stream_socket, siccome si crede che non dovrebbe richiedere tale accesso.
Then si dovrebbe riportare il problema come bug.  
E' possibile generare un modulo di politica locale per consentire questo accesso.
Do
# grep /usr/bin/evince-thumbnailer /var/log/audit/audit.log | audit2allow -D -M mypol
# semodule -i mypol.pp

*****  Plugin catchall (14.7 confidence) suggests  ***************************

If si crede che evince-thumbnailer dovrebbe avere possibilità di accesso append sui unix_stream_socket unix_stream_socket in modo predefinito.
Then si dovrebbe riportare il problema come bug.
E' possibile generare un modulo di politica locale per consentire questo accesso.
Do
consentire questo accesso per il momento eseguendo:
# grep evince-thumbnai /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                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Objects                unix_stream_socket [ unix_stream_socket ]
Source                        evince-thumbnai
Source Path                   /usr/bin/evince-thumbnailer
Port                          <Sconosciuto>
Host                          (removed)
Source RPM Packages           evince-3.8.3-1.fc19.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.12.1-69.fc19.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.10.4-300.fc19.x86_64 #1 SMP Tue
                              Jul 30 11:29:05 UTC 2013 x86_64 x86_64
Alert Count                   4
First Seen                    2013-08-05 14:56:36 CEST
Last Seen                     2013-08-05 14:56:38 CEST
Local ID                      0185adb5-e6ee-4649-a954-20f78ce0697b

Raw Audit Messages
type=AVC msg=audit(1375707398.50:464): avc:  denied  { append } for  pid=3269 comm="evince-thumbnai" path="socket:[19276]" dev="sockfs" ino=19276 scontext=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=unix_stream_socket


type=AVC msg=audit(1375707398.50:464): avc:  denied  { append } for  pid=3269 comm="evince-thumbnai" path="socket:[19276]" dev="sockfs" ino=19276 scontext=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=unix_stream_socket


type=SYSCALL msg=audit(1375707398.50:464): arch=x86_64 syscall=execve success=yes exit=0 a0=7fba58002956 a1=7fba580014d0 a2=7fffb2c1e618 a3=1f items=0 ppid=3238 pid=3269 auid=1000 uid=1000 gid=1000 euid=1000 suid=1000 fsuid=1000 egid=1000 sgid=1000 fsgid=1000 ses=1 tty=(none) comm=evince-thumbnai exe=/usr/bin/evince-thumbnailer subj=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 key=(null)

Hash: evince-thumbnai,thumb_t,unconfined_t,unix_stream_socket,append

Additional info:
reporter:       libreport-2.1.6
hashmarkername: setroubleshoot
kernel:         3.10.4-300.fc19.x86_64
type:           libreport