Listen to this Post
The vulnerability exists in the `updateNotificationChannelGroupFromPrivilegedListener` method of the `NotificationManagerService.java` file within the Android Framework. This method, which handles updates to notification channel groups, lacks proper controls on resource allocation. An attacker with a local application and low privileges can repeatedly call this method. Each call triggers operations that consume system resources without releasing them. This leads to uncontrolled resource consumption, specifically resource exhaustion. The exhaustion is permanent, preventing the Notification Manager Service from functioning correctly. No user interaction is required for exploitation, and the attack complexity is low. The result is a local denial of service (DoS), crippling notification functionality and affecting system availability.
dailycve form:
Platform: Android
Version: 13.0 14.0 15.0 16.0
Vulnerability: Denial of Service
Severity: High
date: 2025-12-08
Prediction: Early December 2025
What Undercode Say:
Analytics
– `adb shell getprop ro.build.version.security_patch`
– Check for `2025-12-05` patch level.
– Review AOSP commit b812baa1463c9f9e81efa617c9d08ed7a63488b4.
– Scan for apps requesting `POST_NOTIFICATIONS` permission excessively.
How Exploit:
A malicious app requests notification permissions. It then calls the vulnerable `updateNotificationChannelGroupFromPrivilegedListener` API in a tight loop. The service fails to limit these requests, exhausting memory/CPU. This leads to a permanent DoS in the notification subsystem, requiring a factory reset.
Protection from this CVE
Apply Android security updates dated `2025-12-05` or later. Update devices to patched AOSP versions (13, 14, 15, 16). Restrict installation of untrusted applications. Monitor for abnormal notification service behavior.
Impact:
Permanent local denial of service. High impact on system availability. Notification functionality becomes unusable. No compromise of data confidentiality or integrity.
🎯Let’s Practice Exploiting & Learn Patching For Free:
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
