Xauth fails with access denied when SELinux is enabled

Issue

• Xauth fails to execute and returns an access denied when selinx is enabled.

type=SELINUX_ERR msg=audit(1402495041.005:85): security_compute_sid:  invalid context system_u:system_r:xauth_t:s0-s0:c0.c1023 for scontext=system_u:system_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:xauth_exec_t:s0 tclass=process
type=SYSCALL msg=audit(1402495041.005:85): arch=c000003e syscall=59 success=no exit=-13 a0=1dc34d0 a1=1dc6770 a2=1dd4d60 a3=10 items=1 ppid=1994 pid=2031 auid=4294967295 uid=1192 gid=500 euid=1192 suid=1192 fsuid=1192 egid=500 sgid=500 fsgid=500 tty=pts0 ses=4294967295 comm="bash" exe="/bin/bash" subj=system_u:system_r:unconfined_t:s0-s0:c0.c1023 key=(null)