Some Arabic and Indic vowel marker characters can be combined with Latin characters in a domain name to eclipse the non-Latin character with some font sets on the addressbar. The non-Latin character will not be visible to most viewers. This allows for domain spoofing attacks because these combined domain names do not display as punycode. This vulnerability affects Firefox < 57.
{ "binaries": [ { "binary_name": "firefox", "binary_version": "57.0+build4-0ubuntu0.14.04.4" }, { "binary_name": "firefox-dev", "binary_version": "57.0+build4-0ubuntu0.14.04.4" }, { "binary_name": "firefox-globalmenu", "binary_version": "57.0+build4-0ubuntu0.14.04.4" }, { "binary_name": "firefox-mozsymbols", "binary_version": "57.0+build4-0ubuntu0.14.04.4" }, { "binary_name": "firefox-testsuite", "binary_version": "57.0+build4-0ubuntu0.14.04.4" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "firefox", "binary_version": "57.0+build4-0ubuntu0.16.04.5" }, { "binary_name": "firefox-dev", "binary_version": "57.0+build4-0ubuntu0.16.04.5" }, { "binary_name": "firefox-globalmenu", "binary_version": "57.0+build4-0ubuntu0.16.04.5" }, { "binary_name": "firefox-mozsymbols", "binary_version": "57.0+build4-0ubuntu0.16.04.5" }, { "binary_name": "firefox-testsuite", "binary_version": "57.0+build4-0ubuntu0.16.04.5" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "firefox", "binary_version": "57.0.1+build2-0ubuntu1" }, { "binary_name": "firefox-dev", "binary_version": "57.0.1+build2-0ubuntu1" }, { "binary_name": "firefox-globalmenu", "binary_version": "57.0.1+build2-0ubuntu1" }, { "binary_name": "firefox-mozsymbols", "binary_version": "57.0.1+build2-0ubuntu1" }, { "binary_name": "firefox-testsuite", "binary_version": "57.0.1+build2-0ubuntu1" } ], "availability": "No subscription required" }