Heartbleed vs. Shellshock

There have been several atrocious security vulnerabilities announced in the last few months, with Heartbleed in web servers & Shellshock in shell command lines.

About the Shellshock Vulnerability: The Basics of the “Bash Bug” - Security News

What is Shellshock? The OS X and Linux Bash Bug that Could be Bigger than Heartbleed

Errata Security: Bash 'shellshock' bug as big as Heartbleed

Shellshock: Everything you need to know about the Bash Bug

ITC: Unix bug 'Shellshock' leaves software experts, industry shocked - The Economic Times

Shellshock: What you need to know about the Bash vulnerability.

2014: Year of the New 'Old' Bugs - DataBreachToday

The Internet Braces for the Crazy Shellshock Worm

Shellshock: Bash bug 'bigger than Heartbleed' could undermine security of millions of websites – and there's nothing you can do to protect yourself, The Independent