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",
"github_reviewed_at": "2020-06-16T21:22:28Z",
"github_reviewed": true,
"severity": "MODERATE",
"cwe_ids": [
"CWE-20"
]
}