CVE-2023-35663
📋 TL;DR
This vulnerability allows remote attackers to read memory beyond intended boundaries in Android's protocolnetadapter component, potentially exposing sensitive information. It affects Android devices, particularly Google Pixel phones, and requires no user interaction or special privileges for exploitation.
💻 Affected Systems
- Android
- Google Pixel devices
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Remote information disclosure leading to exposure of sensitive device memory contents, potentially including authentication tokens, encryption keys, or other protected data.
Likely Case
Information leakage that could be combined with other vulnerabilities for more complete system compromise, or exposure of device-specific data.
If Mitigated
No impact if patched; limited impact if network access is restricted and device is isolated.
🎯 Exploit Status
No authentication required and no user interaction needed, but exploitation requires understanding of memory layout and protocol handling.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: October 2023 Android security patch level or later
Vendor Advisory: https://source.android.com/security/bulletin/pixel/2023-10-01
Restart Required: Yes
Instructions:
1. Check for system updates in Settings > System > System update. 2. Install October 2023 or later security patch. 3. Reboot device after installation.
🔧 Temporary Workarounds
Network segmentation
allRestrict network access to affected devices to minimize attack surface
Disable unnecessary services
androidDisable network services that use protocolnetadapter if not required
🧯 If You Can't Patch
- Isolate affected devices from untrusted networks
- Implement strict network access controls and monitor for unusual outbound connections
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version > Security patch levelCheck Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level is October 2023 or later📡 Detection & Monitoring
Log Indicators:
- Unusual memory access patterns in system logs
- Crashes or abnormal behavior in network services
Network Indicators:
- Unexpected network traffic to/from Android devices on unusual ports
- Protocol anomalies in network communications
SIEM Query:
source="android_system_logs" AND (event_description="memory access violation" OR event_description="out of bounds read")