CVE-2013-1911
lib/ldoce/word.rb in the ldoce 0.0.2 gem for Ruby allows remote attackers to execute arbitrary commands via shell metacharacters in (1) an mp3 URL or (2) file name.
Date published : 2013-04-02
http://www.securityfocus.com/bid/58783
http://archives.neohapsis.com/archives/bugtraq/2013-04/0010.html