Shellshock r2 fix

A lot have been discussed recently about this vulnerability in bash. The internet was totally shocked just like what happened with heartbleed. Several vulnerabilities have been discovered in bash, which caused the distros to release several updates on the same package and being a little chaotic to know which was the correct patch to take. The vulnerability was not just affecting local users which have a little risk, but webservers running CGIs because http parameters are passed as environment variables to the script which was executing the functions defined in there.