satellite sync is failing with "error: error reading package header"

Issue

• Satellite-sync is failing with "SYNC ERROR: unhandled exception occurred".

• Following error occur when running, satellite-sync -c rhel-x86_64-server-5

    Exception Handler Information
    Traceback (most recent call last):
    File "/usr/bin/satellite-sync", line 143, in main
      return satsync.Runner().main()
    File "/usr/share/rhn/satellite_tools/satsync.py", line 226, in main
      ret = method()
    File "/usr/share/rhn/satellite_tools/satsync.py", line 343, in _step_packages
      self._affected_channels = self.syncer.import_packages()
    File "/usr/share/rhn/satellite_tools/satsync.py", line 1785, in import_packages
      sync_handlers.import_packages(batch, sources)
    File "/usr/share/rhn/satellite_tools/sync_handlers.py", line 433, in import_packages
      importer.run()
    File "/usr/share/rhn/server/importlib/importLib.py", line 651, in run
      self.submit()
    File "/usr/share/rhn/server/importlib/packageImport.py", line 323, in submit
      self._import_signatures()
    File "/usr/share/rhn/server/importlib/packageImport.py", line 511, in _import_signatures
      header = rhn_rpm.get_package_header(filename=full_path)
    File "/usr/lib/python2.4/site-packages/spacewalk/common/rhn_rpm.py", line 287, in get_package_header
      hdr = ts.hdrFromFdno(file_desc)
    File "/usr/lib/python2.4/site-packages/spacewalk/common/rhn_rpm.py", line 110, in hdrFromFdno
      return self.ts.hdrFromFdno(fd)
    error: error reading package header