SecureMyGemfile searches your Gemfile.lock and informs you if any versions have securty issues.
Add this line to your application's Gemfile:
gem 'secure_my_gemfile'
And then execute:
$ bundle
Or install it yourself as:
$ gem install secure_my_gemfile
Within your directory containing the Gemfile.lock run secure_my_gemfile
.
The gem is available as open source under the terms of the MIT License.