Summary:

SELinux prevented restorecon from reading from the urandom device.

Detailed Description:

[restorecon has a permissive type (setfiles_t). This access was not denied.]

SELinux prevented restorecon from reading from the urandom device. This access
should be allowed for individual applications, but there are situations where
all applications require the access (for example, when ProPolice/SSP stack
smashing protection is used). Allowing this access may allow malicious
applications to drain the kernel entropy pool. This can compromise the ability
of some software that is dependent on high quality random numbers (e.g.,
ssh-keygen) to operate effectively. The risk of this type of attack is
relatively low.

Allowing Access:

Changing the "global_ssp" boolean to true will allow this access: "setsebool -P
global_ssp=1."

Fix Command:

setsebool -P global_ssp=1

Additional Information:

Source Context                unconfined_u:unconfined_r:setfiles_t:s0-s0:c0.c102
                              3
Target Context                system_u:object_r:urandom_device_t:s0
Target Objects                /dev/urandom [ chr_file ]
Source                        restorecon
Source Path                   /sbin/setfiles
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           policycoreutils-2.0.82-18.fc13
Target RPM Packages           
Policy RPM                    selinux-policy-3.7.19-21.fc13
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   global_ssp
Host Name                     (removed)
Platform                      Linux (removed)
                              2.6.33.5-112.fc13.x86_64 #1 SMP Thu May 27
                              02:28:31 UTC 2010 x86_64 x86_64
Alert Count                   1
First Seen                    Mon 31 May 2010 10:19:34 PM EDT
Last Seen                     Mon 31 May 2010 10:19:34 PM EDT
Local ID                      9a09c65d-a4c4-4349-bb7f-e4e005306ea8
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1275358774.504:24926): avc:  denied  { read } for  pid=14378 comm="restorecon" path="/dev/urandom" dev=devtmpfs ino=3983 scontext=unconfined_u:unconfined_r:setfiles_t:s0-s0:c0.c1023 tcontext=system_u:object_r:urandom_device_t:s0 tclass=chr_file

node=(removed) type=SYSCALL msg=audit(1275358774.504:24926): arch=c000003e syscall=59 success=yes exit=0 a0=22fb660 a1=22fb880 a2=22fbc20 a3=7fff6294e2c0 items=0 ppid=14193 pid=14378 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=6 comm="restorecon" exe="/sbin/setfiles" subj=unconfined_u:unconfined_r:setfiles_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  global_ssp,restorecon,setfiles_t,urandom_device_t,chr_file,read
audit2allow suggests:

#============= setfiles_t ==============
#!!!! This avc can be allowed using the boolean 'global_ssp'

allow setfiles_t urandom_device_t:chr_file read;