Improper Input Validation in enqueueNotificationInternal Allows Privilege Escalation without User Interaction

CVE-2021-0981 · HIGH Severity

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

In enqueueNotificationInternal of NotificationManagerService.java, there is a possible way to run a foreground service without showing a notification due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11Android ID: A-191981182

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