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CVE-2017-7833 Some Arabic and Indic vowel marker characters can be combined with Latin characters in a domain name to eclipse the…

Description

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.

Affected products and versions

Product Affected versions Fixed in
Firefox 57 earliest → < 57 57

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