abrt 1.0.9 detected a crash.

architecture: i686
cmdline: /usr/bin/python /usr/bin/system-config-firewall 
comment: just unmarked ipv6
component: system-config-firewall
executable: /usr/bin/system-config-firewall
kernel: 2.6.31.5-127.fc12.i686.PAE
package: system-config-firewall-1.2.21-1.fc12
release: Fedora release 12 (Constantine)
uuid: 085702e3

backtrace
-----
Summary: TB085702e3 shutil.py:52:copyfile:IOError: [Errno 13] Permission denied: '/etc/sysconfig/iptables-config'

Traceback (most recent call last):
  File "/usr/share/system-config-firewall/fw_gui.py", line 2038, in settings
    ip4tables_conf.write()
  File "/usr/share/system-config-firewall/fw_iptables.py", line 144, in write
    shutil.copy2(self.filename, "%s.old" % self.filename)
  File "/usr/lib/python2.6/shutil.py", line 99, in copy2
    copyfile(src, dst)
  File "/usr/lib/python2.6/shutil.py", line 52, in copyfile
    fsrc = open(src, 'rb')
IOError: [Errno 13] Permission denied: '/etc/sysconfig/iptables-config'

Local variables in innermost frame:
src: /etc/sysconfig/iptables-config
dst: /etc/sysconfig/iptables-config.old
fdst: None
fsrc: None

How to reproduce
-----
1.just unmarked ipv6
2.
3.