CVE-2024-20007
📋 TL;DR
This vulnerability in MediaTek's MP3 decoder allows an attacker to execute arbitrary code with elevated privileges through a race condition that causes an out-of-bounds write. It affects devices using MediaTek chipsets with vulnerable MP3 decoding software. User interaction is required for exploitation, typically through playing a malicious MP3 file.
💻 Affected Systems
- MediaTek chipsets with MP3 decoder
📦 What is this software?
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with kernel privileges leading to complete device compromise, data theft, and persistent backdoor installation.
Likely Case
Application crash or limited privilege escalation within the media processing context, potentially allowing access to user data.
If Mitigated
Denial of service through application crash if memory protections are enabled, but no code execution.
🎯 Exploit Status
Race conditions are difficult to exploit reliably. Requires precise timing and user interaction with malicious MP3 file.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Patch ID: ALPS08441369
Vendor Advisory: https://corp.mediatek.com/product-security-bulletin/February-2024
Restart Required: Yes
Instructions:
1. Contact device manufacturer for firmware updates. 2. Apply MediaTek-provided patch ALPS08441369. 3. Update device firmware through official channels. 4. Reboot device after update.
🔧 Temporary Workarounds
Disable MP3 playback
allPrevent MP3 file processing in vulnerable applications
Use alternative media players
androidSwitch to media players that don't use the vulnerable MediaTek decoder
🧯 If You Can't Patch
- Restrict user ability to open untrusted MP3 files
- Implement application sandboxing to limit impact of potential exploitation
🔍 How to Verify
Check if Vulnerable:
Check device chipset and firmware version against MediaTek security bulletin. No public detection script available.Check Version:
Android: Settings > About Phone > Build Number. Chipset info varies by device.Verify Fix Applied:
Verify patch ALPS08441369 is applied in system updates or contact manufacturer for patch verification.📡 Detection & Monitoring
Log Indicators:
- Media decoder crashes
- MP3 file processing errors
- Kernel panic logs
Network Indicators:
- Unusual MP3 file downloads
- Suspicious media file transfers
SIEM Query:
source="android_logs" AND ("mp3 decoder" OR "media decoder") AND (crash OR error OR panic)