The 'bash-4.3.30-10.4u' file you get when you decompress that gz archive is the properly formatted and patched bash version you need to replace your current one with, using the procedure described in detail further down the page you linked to.
If you prefer to use an installer for this patch, go
HERE, where you'll find a link to the updated version of the old installer. The download option I posted in
post 31391 above used patch v4.3.28, and has now been removed and replaced with the new one here.
