Description of problem:
SELinux is preventing /usr/sbin/unbound-anchor from 'name_bind' accesses on the udp_socket .

*****  Plugin bind_ports (92.2 confidence) suggests  *************************

If you want to allow /usr/sbin/unbound-anchor to bind to network port 26783
Then you need to modify the port type.
Do
# semanage port -a -t  -p udp 26783

*****  Plugin catchall_boolean (7.83 confidence) suggests  *******************

If you want to allow system to run with NIS
Then you must tell SELinux about this by enabling the 'nis_enabled' boolean.
You can read 'None' man page for more details.
Do
setsebool -P nis_enabled 1

*****  Plugin catchall (1.41 confidence) suggests  ***************************

If you believe that unbound-anchor 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 unbound-anchor /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:system_cronjob_t:s0-s0:c0.c1023
Target Context                system_u:object_r:unreserved_port_t:s0
Target Objects                 [ udp_socket ]
Source                        unbound-anchor
Source Path                   /usr/sbin/unbound-anchor
Port                          26783
Host                          (removed)
Source RPM Packages           unbound-libs-1.4.20-3.fc18.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.11.1-98.fc18.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     (removed)
Platform                      Linux (removed) 3.9.11-200.fc18.x86_64 #1 SMP Mon
                              Jul 22 21:04:50 UTC 2013 x86_64 x86_64
Alert Count                   1
First Seen                    2013-08-01 03:10:01 PDT
Last Seen                     2013-08-01 03:10:01 PDT
Local ID                      62f00997-4d9e-4eb0-bcb2-3ff1a6afa82d

Raw Audit Messages
type=AVC msg=audit(1375351801.910:169): avc:  denied  { name_bind } for  pid=5145 comm="unbound-anchor" src=26783 scontext=system_u:system_r:system_cronjob_t:s0-s0:c0.c1023 tcontext=system_u:object_r:unreserved_port_t:s0 tclass=udp_socket


type=AVC msg=audit(1375351801.910:169): avc:  denied  { node_bind } for  pid=5145 comm="unbound-anchor" src=26783 scontext=system_u:system_r:system_cronjob_t:s0-s0:c0.c1023 tcontext=system_u:object_r:node_t:s0 tclass=udp_socket


type=SYSCALL msg=audit(1375351801.910:169): arch=x86_64 syscall=bind success=yes exit=0 a0=a a1=7f07363ffa20 a2=10 a3=7fff930cca4c items=0 ppid=5143 pid=5145 auid=991 uid=991 gid=989 euid=991 suid=991 fsuid=991 egid=989 sgid=989 fsgid=989 ses=10 tty=(none) comm=unbound-anchor exe=/usr/sbin/unbound-anchor subj=system_u:system_r:system_cronjob_t:s0-s0:c0.c1023 key=(null)

Hash: unbound-anchor,system_cronjob_t,unreserved_port_t,udp_socket,name_bind

audit2allow

#============= system_cronjob_t ==============
#!!!! This avc can be allowed using one of the these booleans:
#     nis_enabled, kerberos_enabled

allow system_cronjob_t node_t:udp_socket node_bind;
#!!!! This avc can be allowed using the boolean 'nis_enabled'

allow system_cronjob_t unreserved_port_t:udp_socket name_bind;

audit2allow -R
require {
	type system_cronjob_t;
}

#============= system_cronjob_t ==============
corenet_udp_bind_generic_node(system_cronjob_t)
corenet_udp_bind_generic_port(system_cronjob_t)


Additional info:
reporter:       libreport-2.1.6
hashmarkername: setroubleshoot
kernel:         3.9.11-200.fc18.x86_64
type:           libreport