actionpack/lib/action_view/template/text.rb
in Action View in Ruby on Rails 3.x before 3.2.17 converts MIME type strings to symbols during use of the :text
option to the render
method, which allows remote attackers to cause a denial of service (memory consumption) by including these strings in headers.
{ "nvd_published_at": "2014-02-20T15:27:09Z", "cwe_ids": [ "CWE-20" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2020-06-16T21:22:28Z" }