Description of problem:
Nothing special, it happens in the background when a pdf is stored somewhere, e.g. Desktop
SELinux is preventing /usr/bin/evince-thumbnailer from 'name_bind' accesses on the udp_socket .

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

If you believe that evince-thumbnailer should be allowed name_bind access on the  udp_socket 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 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                system_u:object_r:hi_reserved_port_t:s0
Target Objects                 [ udp_socket ]
Source                        evince-thumbnai
Source Path                   /usr/bin/evince-thumbnailer
Port                          774
Host                          (removed)
Source RPM Packages           evince-3.6.1-2.fc18.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.11.1-67.fc18.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     (removed)
Platform                      Linux (removed) 3.7.2-201.fc18.x86_64 #1 SMP Fri
                              Jan 11 22:16:23 UTC 2013 x86_64 x86_64
Alert Count                   1
First Seen                    2013-01-18 17:35:32 CET
Last Seen                     2013-01-18 17:35:32 CET
Local ID                      4a3ab3b3-e902-49e6-b36c-836dc3597470

Raw Audit Messages
type=AVC msg=audit(1358526932.628:666): avc:  denied  { name_bind } for  pid=26038 comm="evince-thumbnai" src=774 scontext=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 tcontext=system_u:object_r:hi_reserved_port_t:s0 tclass=udp_socket


type=AVC msg=audit(1358526932.628:666): avc:  denied  { node_bind } for  pid=26038 comm="evince-thumbnai" src=774 scontext=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 tcontext=system_u:object_r:node_t:s0 tclass=udp_socket


type=SYSCALL msg=audit(1358526932.628:666): arch=x86_64 syscall=bind success=no exit=EACCES a0=8 a1=7fff1765a770 a2=10 a3=4560 items=0 ppid=6605 pid=26038 auid=9377 uid=9377 gid=20 euid=9377 suid=9377 fsuid=9377 egid=20 sgid=20 fsgid=20 ses=11 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,hi_reserved_port_t,udp_socket,name_bind

audit2allow

#============= thumb_t ==============
allow thumb_t hi_reserved_port_t:udp_socket name_bind;
allow thumb_t node_t:udp_socket node_bind;

audit2allow -R

#============= thumb_t ==============
allow thumb_t hi_reserved_port_t:udp_socket name_bind;
allow thumb_t node_t:udp_socket node_bind;


Additional info:
hashmarkername: setroubleshoot
kernel:         3.7.2-201.fc18.x86_64
type:           libreport