A crash can occur when processing a crafted S/MIME message or an XPI package containing a crafted signature. This can be used as a denial-of-service (DOS) attack because Thunderbird reopens the last seen message on restart, triggering the crash again. This vulnerability affects Thunderbird < 60.5.
[
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "60.5",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]