Bundler 1.x might allow remote attackers to inject arbitrary Ruby code into an application by leveraging a gem name collision on a secondary source. NOTE: this might overlap CVE-2013-0334.
https://github.com/bundler/bundler/issues/5062
https://github.com/bundler/bundler/issues/5051
https://bugzilla.redhat.com/show_bug.cgi?id=1381951
http://www.securityfocus.com/bid/93423
http://www.openwall.com/lists/oss-security/2016/10/05/3