CVE-2018-9408
📋 TL;DR
CVE-2018-9408 is an out-of-bounds read vulnerability in Android's GPS subsystem that could allow local information disclosure. Attackers with system execution privileges could potentially read sensitive memory contents without user interaction. This affects Android devices with vulnerable GPS firmware.
💻 Affected Systems
- Google Pixel
- Pixel XL
- Android devices with specific GPS hardware
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
System-level attacker could read sensitive kernel memory, potentially exposing cryptographic keys, passwords, or other protected data.
Likely Case
Local attacker with system privileges reads limited memory contents, potentially exposing some system information but not full system compromise.
If Mitigated
With proper privilege separation and SELinux policies, impact is limited to GPS subsystem memory only.
🎯 Exploit Status
Requires system execution privileges and knowledge of GPS subsystem. No public exploits known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Android Security Patch Level 2018-06-05 or later
Vendor Advisory: https://source.android.com/security/bulletin/pixel/2018-06-01
Restart Required: Yes
Instructions:
1. Apply Android security patch from June 2018 or later. 2. Update device firmware through official channels. 3. Reboot device after update.
🔧 Temporary Workarounds
Restrict GPS permissions
androidLimit which apps can access GPS functionality to reduce attack surface
Disable unnecessary GPS services
androidTurn off GPS when not needed to reduce exposure
🧯 If You Can't Patch
- Isolate affected devices from sensitive networks
- Implement strict app vetting and privilege management
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android security patch level. If before June 2018, device may be vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify Android security patch level is 2018-06-05 or later. Check GPS functionality works normally after update.📡 Detection & Monitoring
Log Indicators:
- Unusual GPS subsystem errors
- Permission denials for GPS access
Network Indicators:
- None - local vulnerability only
SIEM Query:
android.security.cve AND (CVE-2018-9408 OR gps.s OR m3326)