CVE-2024-30416
📋 TL;DR
This CVE-2024-30416 is a Use After Free vulnerability in a driver module that could allow attackers to crash affected systems, causing denial of service. It affects Huawei devices running HarmonyOS. Successful exploitation would disrupt availability but not enable code execution or privilege escalation.
💻 Affected Systems
- Huawei devices with HarmonyOS
📦 What is this software?
Emui by Huawei
Emui by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
⚠️ Risk & Real-World Impact
Worst Case
System crash leading to complete denial of service, requiring reboot to restore functionality.
Likely Case
Application or service instability causing intermittent availability issues.
If Mitigated
Minimal impact with proper patching and system hardening in place.
🎯 Exploit Status
Exploitation requires local access or ability to trigger the vulnerable driver function
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: As specified in Huawei security bulletins for April 2024
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2024/4/
Restart Required: Yes
Instructions:
1. Check Huawei security bulletins for affected devices. 2. Apply available security updates through device settings. 3. Reboot device after update installation.
🔧 Temporary Workarounds
Restrict driver access
allLimit access to vulnerable driver module through system permissions
🧯 If You Can't Patch
- Implement strict access controls to limit who can interact with driver components
- Monitor system logs for driver-related crashes or unusual behavior
🔍 How to Verify
Check if Vulnerable:
Check device HarmonyOS version against affected versions in Huawei security bulletinsCheck Version:
Check device settings > About phone > HarmonyOS versionVerify Fix Applied:
Verify HarmonyOS version has been updated to patched version📡 Detection & Monitoring
Log Indicators:
- Driver module crash logs
- Kernel panic events
- System stability issues
Network Indicators:
- Unusual system reboots affecting services
SIEM Query:
Search for driver crash events or system instability patterns🔗 References
- https://consumer.huawei.com/en/support/bulletin/2024/4/
- https://https://device.harmonyos.com/en/docs/security/update/security-bulletins-202404-0000001880501689
- https://consumer.huawei.com/en/support/bulletin/2024/4/
- https://https://device.harmonyos.com/en/docs/security/update/security-bulletins-202404-0000001880501689
