We'll respond shortly.
We are running on a c1.medium( 1.75GB memory, 5CU) and want to change to something like m1.large or m1.medium with more generous memory allocation. What would be the best way to do it? Change the type from EC2 console or start from scratch?
All versions of Rails are affected. There are multiple weaknesses in the parameter parsing code for Ruby on Rails which allows attackers to bypass authentication systems, inject arbitrary SQL, inject and execute arbitrary code, or perform a DoS attack on a Rails application.
It is recommended for everyone to upgrade immediately to patched version.