Recently, I made the script to patch your BASH environment available on this site, but that meant a need to copy and paste.
Using a user with the appropriate rights, you can now pipe directly using a quiet wget to make the full recompile to most recent BASH version possible.
All you need is this line:
wget --quiet -O- http://blog.sven.co.za/linux/patch-bash|sh
Don’t execute without reading the code first (but you wouldn’t do something as irresponsible as that, now, would you? But that’s more of a life lesson.)
The script patches to the most recent patch bash43-30 and will be updated from here.