CVE-2024-20041
📋 TL;DR
This CVE describes an out-of-bounds read vulnerability in MediaTek's 'da' component that could allow local information disclosure. Attackers with system execution privileges could exploit this without user interaction to read memory beyond intended boundaries. The vulnerability affects MediaTek devices using the vulnerable component.
💻 Affected Systems
- MediaTek devices with vulnerable 'da' component
📦 What is this software?
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
An attacker with system privileges could read sensitive information from adjacent memory, potentially exposing cryptographic keys, authentication tokens, or other protected data.
Likely Case
Local information disclosure where an attacker with elevated privileges reads limited memory contents, potentially exposing system information or application data.
If Mitigated
With proper privilege separation and defense-in-depth controls, impact is limited to information disclosure within the compromised process context.
🎯 Exploit Status
Exploitation requires system execution privileges and knowledge of memory layout. No user interaction needed once attacker has required privileges.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Patch ID: ALPS08541746
Vendor Advisory: https://corp.mediatek.com/product-security-bulletin/April-2024
Restart Required: Yes
Instructions:
1. Check MediaTek security bulletin for April 2024. 2. Apply patch ALPS08541746 through device firmware update. 3. Reboot device to activate patch. 4. Verify patch installation through version checking.
🔧 Temporary Workarounds
Restrict system privileges
allLimit applications and users with system execution privileges to reduce attack surface
Enable memory protection features
linuxUse OS-level memory protection mechanisms like ASLR and DEP where available
🧯 If You Can't Patch
- Implement strict privilege separation to limit system execution privileges
- Monitor for unusual memory access patterns and privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against MediaTek security bulletin; devices with patch ALPS08541746 are protectedCheck Version:
Check device settings > About phone > Build number for MediaTek devicesVerify Fix Applied:
Verify patch ALPS08541746 is applied through device firmware version or patch management system📡 Detection & Monitoring
Log Indicators:
- Unusual memory access patterns in system logs
- Processes attempting privilege escalation
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
Process execution with system privileges AND abnormal memory read operations