CVE-2024-27219
📋 TL;DR
This vulnerability allows local privilege escalation on affected Android Pixel devices through an out-of-bounds write in the tmu_set_pi function. Attackers can exploit this without user interaction or additional privileges to gain elevated system access. Only Pixel devices running vulnerable Android versions are affected.
💻 Affected Systems
- Google Pixel smartphones
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to execute arbitrary code with kernel privileges, install persistent malware, access all user data, and bypass security controls.
Likely Case
Local attackers gaining root access to install malicious apps, steal sensitive data, or disable security features on compromised devices.
If Mitigated
Limited impact with proper patch management and device security policies in place, though physical access could still enable exploitation.
🎯 Exploit Status
Requires local access but no authentication or user interaction. Exploitation depends on understanding the specific memory layout and driver behavior.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: March 2024 Android security patch level
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. Download and install March 2024 security patch. 3. Reboot device when prompted. 4. Verify patch level in Settings > About phone > Android version.
🔧 Temporary Workarounds
Disable unnecessary local access
allRestrict physical and remote local access to vulnerable devices
🧯 If You Can't Patch
- Isolate vulnerable devices from sensitive networks and data
- Implement strict access controls and monitor for suspicious local activity
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone. 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 in Settings > About phone > Android version.📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- Unexpected privilege escalation attempts
- Suspicious driver activity in dmesg
Network Indicators:
- Unusual outbound connections from elevated processes
SIEM Query:
source="android" AND (event_type="privilege_escalation" OR kernel_panic="true")