{ "CVE_data_meta" : { "ASSIGNER" : "security@mozilla.org", "ID" : "CVE-2017-7838", "STATE" : "PUBLIC" }, "affects" : { "vendor" : { "vendor_data" : [ { "product" : { "product_data" : [ { "product_name" : "Firefox", "version" : { "version_data" : [ { "version_affected" : "<", "version_value" : "57" } ] } } ] }, "vendor_name" : "Mozilla" } ] } }, "data_format" : "MITRE", "data_type" : "CVE", "data_version" : "4.0", "description" : { "description_data" : [ { "lang" : "eng", "value" : "Punycode format text will be displayed for entire qualified international domain names in some instances when a sub-domain triggers the punycode display instead of the primary domain being displayed in native script and the sub-domain only displaying as punycode. This could be used for limited spoofing attacks due to user confusion. This vulnerability affects Firefox < 57." } ] }, "problemtype" : { "problemtype_data" : [ { "description" : [ { "lang" : "eng", "value" : "Failure of individual decoding of labels in international domain names triggers punycode display of entire IDN" } ] } ] }, "references" : { "reference_data" : [ { "name" : "https://bugzilla.mozilla.org/show_bug.cgi?id=1399540", "refsource" : "CONFIRM", "url" : "https://bugzilla.mozilla.org/show_bug.cgi?id=1399540" }, { "name" : "https://www.mozilla.org/security/advisories/mfsa2017-24/", "refsource" : "CONFIRM", "url" : "https://www.mozilla.org/security/advisories/mfsa2017-24/" }, { "name" : "101832", "refsource" : "BID", "url" : "http://www.securityfocus.com/bid/101832" }, { "name" : "1039803", "refsource" : "SECTRACK", "url" : "http://www.securitytracker.com/id/1039803" } ] } }