CVE-2024-2212
📋 TL;DR
CVE-2024-2212 is a heap buffer overflow vulnerability in Eclipse ThreadX's FreeRTOS compatibility layer. Missing parameter checks in xQueueCreate() and xQueueCreateSet() functions allow integer wraparound leading to memory corruption. This affects systems using Eclipse ThreadX with FreeRTOS compatibility API before version 6.4.0.
💻 Affected Systems
- Eclipse ThreadX
📦 What is this software?
Threadx by Eclipse
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, denial of service, or data exfiltration
Likely Case
System crashes, denial of service, or memory corruption leading to unpredictable behavior
If Mitigated
Contained memory corruption with minimal impact if proper memory protections are enabled
🎯 Exploit Status
Exploitation requires control over queue creation parameters and specific memory layout conditions
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.4.0
Vendor Advisory: https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-v9jj-7qjg-h6g6
Restart Required: Yes
Instructions:
1. Update Eclipse ThreadX to version 6.4.0 or later. 2. Recompile all applications using the updated library. 3. Deploy updated firmware to affected devices.
🔧 Temporary Workarounds
Disable FreeRTOS Compatibility Layer
allRemove or disable the vulnerable FreeRTOS compatibility API if not required
Remove references to utility/rtos_compatibility_layers/FreeRTOS/ from build configuration
Add Parameter Validation
allImplement custom parameter validation for xQueueCreate() and xQueueCreateSet() calls
Add bounds checking before calling vulnerable functions
🧯 If You Can't Patch
- Implement strict input validation for all queue creation parameters
- Enable memory protection features like ASLR and stack canaries if supported by hardware
🔍 How to Verify
Check if Vulnerable:
Check if Eclipse ThreadX version is below 6.4.0 and if FreeRTOS compatibility API is used
Check Version:
Check build configuration or firmware version strings for ThreadX version information
Verify Fix Applied:
Verify Eclipse ThreadX version is 6.4.0 or later and review code for removed vulnerable functions
📡 Detection & Monitoring
Log Indicators:
- Memory allocation failures
- System crashes during queue operations
- Unexpected process terminations
Network Indicators:
- Unusual device behavior or communication patterns
SIEM Query:
Search for system logs containing memory corruption errors or unexpected reboots in embedded devices
🔗 References
- http://seclists.org/fulldisclosure/2024/May/35
- http://www.openwall.com/lists/oss-security/2024/05/28/1
- https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-v9jj-7qjg-h6g6
- http://seclists.org/fulldisclosure/2024/May/35
- http://www.openwall.com/lists/oss-security/2024/05/28/1
- https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-v9jj-7qjg-h6g6