Shellshock is the name given to a vulnerability that exists in GNU Bash versions 1.14 through 4.3. It’s suspected that Shellshock could impact millions of websites and devices across the web. On Thursday, Red Hat warned users that the previously released patch for the problem wasn’t complete. The general recommendation is that users should check if they are running CGI, which makes exploiting the issue easier remotely, but that isn’t the only way to tell if a system is vulnerable; and the absence of CGI doesn’t negate the need for a fix.”]

