CVE-2013-1821
lib/rexml/text.rb in the REXML parser in Ruby before 1.9.3-p392 allows remote attackers to cause a denial of service (memory consumption and crash) via crafted text nodes in an XML document, aka an XML Entity Expansion (XEE) attack.
Date published : 2013-04-09
http://www.securityfocus.com/bid/58141
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=39384