DL::dlopen in Ruby 1.8, 1.9.0, 1.9.2, 1.9.3, 2.0.0 before patchlevel 648, and 2.1 before 2.1.8 opens libraries with tainted names.Referenceshttps://github.com/ruby/ruby/commit/4600cf725a86ce31266153647ae5aa1197b1215bhttp://seclists.org/oss-sec/2015/q3/222https://www.ruby-lang.org/en/news/2015/12/16/unsafe-tainted-string-usage-in-fiddle-and-dl-cve-2015-7551/https://access.redhat.com/errata/RHSA-2018:0583https://bugzilla.redhat.com/show_bug.cgi?id=1248935http://www.securityfocus.com/bid/76060
