CVE-2024-47029
📋 TL;DR
This vulnerability allows local attackers to read memory beyond intended boundaries in Android's Trusty TEE shared memory manager. It could disclose sensitive information from the Trusted Execution Environment without requiring user interaction. Affects Android devices with vulnerable Trusty implementations.
💻 Affected Systems
- Android with Trusty TEE implementation
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Disclosure of cryptographic keys, authentication tokens, or other sensitive data stored in Trusty TEE memory, potentially enabling further attacks.
Likely Case
Limited information disclosure from adjacent memory regions, possibly exposing non-critical system data or application information.
If Mitigated
No impact if patched; otherwise, minimal risk with proper isolation and defense-in-depth controls.
🎯 Exploit Status
Requires local access and ability to interact with Trusty shared memory interface. No authentication bypass needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: October 2024 Android security patch level
Vendor Advisory: https://source.android.com/security/bulletin/pixel/2024-10-01
Restart Required: Yes
Instructions:
1. Apply October 2024 Android security patch via Settings > System > System update. 2. Reboot device after update completes. 3. Verify patch level in Settings > About phone > Android version.
🔧 Temporary Workarounds
No effective workarounds
allThis is a kernel-level vulnerability requiring patching. No configuration changes can mitigate it.
🧯 If You Can't Patch
- Restrict physical access to devices and implement strict app vetting policies
- Monitor for unusual Trusty TEE activity or memory access patterns
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone. 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 5, 2024' or later in Settings > About phone > Android version.📡 Detection & Monitoring
Log Indicators:
- Unusual Trusty shared memory access patterns
- Kernel logs showing out-of-bounds memory reads
Network Indicators:
- None - local vulnerability only
SIEM Query:
source="android_kernel" AND ("trusty" OR "shared_memory") AND ("out_of_bounds" OR "bounds_check")