CVE-2019-2324
📋 TL;DR
This vulnerability allows an attacker to execute arbitrary code or cause denial of service when the ADSP (Audio Digital Signal Processor) is compromised. The compromised ADSP returns an audio port index outside the valid range, leading to out-of-bounds memory access. Affected devices include numerous Snapdragon-based systems across automotive, IoT, mobile, and wearable platforms.
💻 Affected Systems
- Snapdragon Auto
- Snapdragon Connectivity
- Snapdragon Consumer IOT
- Snapdragon Industrial IOT
- Snapdragon IoT
- Snapdragon Mobile
- Snapdragon Voice & Music
- Snapdragon Wearables
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with kernel privileges leading to complete device compromise, data theft, or persistent backdoor installation.
Likely Case
Denial of service (device crash/reboot) or limited information disclosure from memory corruption.
If Mitigated
No impact if patched or if ADSP compromise is prevented through other security controls.
🎯 Exploit Status
Requires ADSP compromise first, then exploitation of the out-of-bounds access. No public exploit code available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Android security patches from 2019 onward
Vendor Advisory: https://source.android.com/security/bulletin/
Restart Required: Yes
Instructions:
1. Check for Android security updates from device manufacturer. 2. Apply latest available security patch. 3. For embedded devices, contact Qualcomm or device manufacturer for firmware updates.
🔧 Temporary Workarounds
ADSP Isolation
allImplement strict isolation between ADSP and main processor to prevent ADSP compromise.
🧯 If You Can't Patch
- Implement network segmentation to isolate affected devices from critical networks.
- Deploy application whitelisting and runtime protection to detect exploitation attempts.
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level (Settings > About phone > Android security patch level). If before 2019 patches, likely vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify Android security patch level is from 2019 or later. For embedded devices, check firmware version with manufacturer.📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- ADSP crash reports
- Memory access violation logs
Network Indicators:
- Unusual ADSP communication patterns
- Suspicious audio service requests
SIEM Query:
Device logs containing 'ADSP', 'audio', 'out of bounds', or 'memory corruption' keywords