There is a possible denial of service vulnerability in Action View (Rails) <5.2.2.1, <5.1.6.2, <5.0.7.2, <4.2.11.1 where specially crafted accept headers can cause action view to consume 100% cpu and make the server unresponsive.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2:5.2.2.1+dfsg-1ubuntu1", "binary_name": "rails" }, { "binary_version": "2:5.2.2.1+dfsg-1ubuntu1", "binary_name": "ruby-actioncable" }, { "binary_version": "2:5.2.2.1+dfsg-1ubuntu1", "binary_name": "ruby-actionmailer" }, { "binary_version": "2:5.2.2.1+dfsg-1ubuntu1", "binary_name": "ruby-actionpack" }, { "binary_version": "2:5.2.2.1+dfsg-1ubuntu1", "binary_name": "ruby-actionview" }, { "binary_version": "2:5.2.2.1+dfsg-1ubuntu1", "binary_name": "ruby-activejob" }, { "binary_version": "2:5.2.2.1+dfsg-1ubuntu1", "binary_name": "ruby-activemodel" }, { "binary_version": "2:5.2.2.1+dfsg-1ubuntu1", "binary_name": "ruby-activerecord" }, { "binary_version": "2:5.2.2.1+dfsg-1ubuntu1", "binary_name": "ruby-activestorage" }, { "binary_version": "2:5.2.2.1+dfsg-1ubuntu1", "binary_name": "ruby-activesupport" }, { "binary_version": "2:5.2.2.1+dfsg-1ubuntu1", "binary_name": "ruby-rails" }, { "binary_version": "2:5.2.2.1+dfsg-1ubuntu1", "binary_name": "ruby-railties" } ] }