CVE-2024-47027
📋 TL;DR
This vulnerability allows local attackers to access arbitrary physical memory due to improper input validation in Android's shared memory component. It enables local privilege escalation without requiring user interaction or additional execution privileges. Affects Android devices, particularly Google Pixel devices.
💻 Affected Systems
- Android
- Google Pixel devices
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attacker to read/write any physical memory, bypass security boundaries, install persistent malware, and access sensitive data including encryption keys.
Likely Case
Local privilege escalation allowing unprivileged apps to gain kernel-level access, potentially leading to data theft, surveillance, or further system exploitation.
If Mitigated
Limited impact if proper kernel hardening, SELinux policies, and memory protection mechanisms are in place and functioning correctly.
🎯 Exploit Status
Requires local access but no user interaction. Exploitation involves crafting malicious inputs to trigger the memory access vulnerability. No public exploit code identified at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: October 2024 Android Security Patch
Vendor Advisory: https://source.android.com/security/bulletin/pixel/2024-10-01
Restart Required: Yes
Instructions:
1. Apply October 2024 Android security patch. 2. For Pixel devices: Settings > System > System update > Check for update. 3. For other Android devices: Check with manufacturer for security patch availability. 4. Reboot device after update.
🔧 Temporary Workarounds
Restrict app installations
androidOnly install apps from trusted sources like Google Play Store to reduce attack surface
Enable Google Play Protect
androidEnsure Google Play Protect is active to detect and block malicious apps
🧯 If You Can't Patch
- Isolate affected devices from sensitive networks and data
- Implement strict app installation policies and monitor for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level: Settings > About phone > Android version > Security patch level. If before October 2024, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level shows October 2024 or later. Check that build fingerprint includes October security patches.📡 Detection & Monitoring
Log Indicators:
- Kernel logs showing memory access violations
- SELinux denials related to shared memory operations
- Unexpected privilege escalation attempts
Network Indicators:
- Unusual outbound connections from elevated processes
- Suspicious data exfiltration patterns
SIEM Query:
source="android_logs" AND ("shared_mem" OR "sm_mem_compat" OR "privilege escalation")