Fix bug #67326	fileinfo: cdf_read_short_sector insufficient boundary check

Upstream fix https://github.com/file/file/commit/6d209c1c489457397a5763bca4b28e43aac90391.patch
Only revelant part applied
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Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  NEWS
  Fix bug #67326	fileinfo: cdf_read_short_sector insufficient boundary check
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