In non-standard configurations, a JPEG image created by JavaScript could have caused an internal variable to overflow, resulting in an out of bounds write, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 78.
[
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "78",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]