CVE-2018-9345
📋 TL;DR
This vulnerability in Android's AudioPolicyService allows local attackers to read uninitialized memory, potentially exposing sensitive information. It affects Android devices running vulnerable versions, requiring no user interaction or special privileges for exploitation.
💻 Affected Systems
- Android
📦 What is this software?
Android by Google
Android by Google
Android by Google
Android by Google
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Sensitive kernel memory or application data could be leaked, potentially exposing cryptographic keys, passwords, or other protected information.
Likely Case
Limited information disclosure of uninitialized audio service memory, which may contain fragments of system data but not necessarily sensitive secrets.
If Mitigated
With proper patching, no information disclosure occurs as the memory is properly initialized before being returned.
🎯 Exploit Status
Exploitation requires understanding of Android Binder IPC and audio service internals; no public exploits known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Android Security Patch Level 2018-06-05
Vendor Advisory: https://source.android.com/security/bulletin/2018-06-01
Restart Required: Yes
Instructions:
1. Check for Android system updates in Settings > System > Advanced > System update. 2. Install the June 2018 security patch. 3. Reboot the device after installation.
🔧 Temporary Workarounds
Restrict app permissions
androidLimit which apps have audio-related permissions to reduce attack surface
🧯 If You Can't Patch
- Isolate vulnerable devices from sensitive networks and data
- Implement strict app vetting and installation controls
🔍 How to Verify
Check if Vulnerable:
Check Android version in Settings > About phone > Android version. If version is 8.0 or 8.1 with security patch level before 2018-06-05, device is vulnerable.Check Version:
adb shell getprop ro.build.version.release && adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level is 2018-06-05 or later in Settings > About phone > Android security patch level.📡 Detection & Monitoring
Log Indicators:
- Unusual audio service crashes or restarts
- Suspicious Binder transactions to audio service
Network Indicators:
- None - this is a local vulnerability
SIEM Query:
Not applicable for local memory disclosure vulnerabilities