Description
The ActiveSupport::XmlMini_JDOM backend in lib/active_support/xml_mini/jdom.rb in the Active Support component in Ruby on Rails 3.0.x and 3.1.x before 3.1.12 and 3.2.x before 3.2.13, when JRuby is used, does not properly restrict the capabilities of the XML parser, which allows remote attackers to read arbitrary files or cause a denial of service (resource consumption) via vectors involving (1) an external DTD or (2) an external entity declaration in conjunction with an entity reference.
Remediation
References
http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html
http://support.apple.com/kb/HT5784
http://weblog.rubyonrails.org/2013/3/18/SEC-ANN-Rails-3-2-13-3-1-12-and-2-3-18-have-been-released/
https://groups.google.com/group/rubyonrails-security/msg/6c2482d4ed1545e6?dmode=source&output=gplain
Related Vulnerabilities
CVE-2011-2093 Vulnerability in maven package com.adobe.blazeds:flex-messaging-core
CVE-2017-1000394 Vulnerability in maven package org.jenkins-ci.main:jenkins-core
CVE-2017-1000048 Vulnerability in maven package org.webjars:qs
CVE-2016-10540 Vulnerability in maven package org.webjars.bower:minimatch
CVE-2017-1000391 Vulnerability in maven package org.jenkins-ci.main:jenkins-core