An access issue was addressed with additional sandbox restrictions. This issue is fixed in iOS 12.3. A sandboxed process may be able to circumvent sandbox restrictions.
[
{
"product": "iOS",
"vendor": "Apple",
"versions": [
{
"lessThan": "iOS 12.3",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]