Posted from Montville, New Jersey, United States.
I came up with a GUI interface within an hour and a half if you don’t want to mess with the command line. XCode and Command Line tools are required to compile the new version, but you can easily access the functions of the script without fishing though the terminal.
This application will upgrade Bash to 3.2.54(1)
Note: This only works on Snow Leopard or later. Gatekeeper must be disabled in order to run this app.
Update: 1.0.1 adds Sparkle Updater functionality, considering that there may be future patches for Bash since the fix is still incomplete.
Update 2: Apple’s update is still vulnerable by one of the bugs and two new shellshock related bugs has been discovered. To be fully protected, you should continue to compile your own using this app until Apple releases a final bash update.
The changelog is here since this front end will keep updating as new developments happen.