(Gizmodo) Shellshock is newly discovered vulnerability in software that's in computer systems we use everyday. It's kind of like Heartbleed, the Open/SSL bug that scared everyone senseless a few months ago and remains unpatched on thousands of systems. According to some experts, however, Shellshock could be way worse, and it's been around for decades.
Shellshock affects a piece of software called Bash. Bash is a "Unix Shell," a command line interface that allows a user to talk to a Unix based system. Originally written in 1980, Bash has evolved from a simple command line interface into one of the most widely used utilities out there. Even though you probably don't see Bash daily, there's a good chance that it's running in the background on your system. OS X and Linux both use Bash, and it has been ported over to everything from Windows to Android.
