There is a File Content Disclosure vulnerability in Action View <5.2.2.1, <5.1.6.2, <5.0.7.2, <4.2.11.1 and v3 where specially crafted accept headers can cause contents of arbitrary files on the target system's filesystem to be exposed.
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{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "binaries": [ { "binary_name": "rails", "binary_version": "2:4.2.10-0ubuntu4+esm2" }, { "binary_name": "ruby-actionmailer", "binary_version": "2:4.2.10-0ubuntu4+esm2" }, { "binary_name": "ruby-actionpack", "binary_version": "2:4.2.10-0ubuntu4+esm2" }, { "binary_name": "ruby-actionview", "binary_version": "2:4.2.10-0ubuntu4+esm2" }, { "binary_name": "ruby-activejob", "binary_version": "2:4.2.10-0ubuntu4+esm2" }, { "binary_name": "ruby-activemodel", "binary_version": "2:4.2.10-0ubuntu4+esm2" }, { "binary_name": "ruby-activerecord", "binary_version": "2:4.2.10-0ubuntu4+esm2" }, { "binary_name": "ruby-activesupport", "binary_version": "2:4.2.10-0ubuntu4+esm2" }, { "binary_name": "ruby-rails", "binary_version": "2:4.2.10-0ubuntu4+esm2" }, { "binary_name": "ruby-railties", "binary_version": "2:4.2.10-0ubuntu4+esm2" } ] }