CVE-2024-25992
📋 TL;DR
CVE-2024-25992 is an out-of-bounds read vulnerability in the tmu_tz_control function of tmu.c that allows local privilege escalation without user interaction. This affects Android Pixel devices and could enable attackers to gain elevated system privileges. Exploitation requires local access to the device.
💻 Affected Systems
- Google Pixel devices
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
An attacker gains full root/system privileges on the device, enabling complete compromise of data, persistence, and further exploitation.
Likely Case
Local malware or malicious apps escalate privileges to perform unauthorized actions, access sensitive data, or install persistent backdoors.
If Mitigated
With proper patching and security controls, the vulnerability is eliminated; unpatched devices remain at high risk.
🎯 Exploit Status
Exploitation requires local access but no user interaction; kernel-level vulnerabilities often attract sophisticated attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: March 2024 Android security update
Vendor Advisory: https://source.android.com/security/bulletin/pixel/2024-03-01
Restart Required: Yes
Instructions:
1. Check for system updates in Settings > System > System update. 2. Install the March 2024 security update. 3. Reboot the device after installation.
🔧 Temporary Workarounds
No effective workaround
allKernel vulnerabilities typically require patching; no configuration changes can mitigate this.
🧯 If You Can't Patch
- Restrict physical and local access to devices; implement strict app installation policies.
- Monitor for unusual privilege escalation attempts using security tools.
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version; if before March 2024, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level shows 'March 5, 2024' or later after update.📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs, unusual privilege escalation in audit logs, SELinux denials related to tmu
Network Indicators:
- None (local exploit only)
SIEM Query:
Search for kernel crash reports or security events indicating privilege escalation on Android devices.