The dns-sync module before 0.1.1 for node.js allows context-dependent attackers to execute arbitrary commands via shell metacharacters in the first argument to the resolve API function.Referenceshttps://github.com/skoranga/node-dns-sync/issues/1http://www.openwall.com/lists/oss-security/2014/11/11/6https://github.com/skoranga/node-dns-sync/commit/d9abaae384b198db1095735ad9c1c73d7b890a0d