Low descenders on some Tibetan characters in several fonts on OS X are clipped when rendered in the addressbar. When used as part of an Internationalized Domain Name (IDN) this can be used for domain name spoofing attacks. Note: This attack only affects OS X operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 58.
[
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "58",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]