CVE-2025-50343
📋 TL;DR
A heap-based memory corruption vulnerability in matio library versions up to 1.5.28 allows attackers to cause out-of-bounds reads and invalid memory frees. This can lead to denial of service, information disclosure, or potentially remote code execution. Any application using the vulnerable matio library to parse MAT files is affected.
💻 Affected Systems
- matio library
📦 What is this software?
Matio by Matio Project
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise if the vulnerability can be weaponized for arbitrary code execution.
Likely Case
Denial of service through application crashes or segmentation faults, potentially leading to information disclosure via memory leaks.
If Mitigated
Application crashes with no data loss if proper input validation and sandboxing are in place.
🎯 Exploit Status
Proof of concept demonstrates crash, but weaponization for RCE would require additional exploitation techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.5.29 or later
Vendor Advisory: https://github.com/tbeu/matio/issues/275
Restart Required: Yes
Instructions:
1. Update matio to version 1.5.29 or later
2. Recompile any applications using matio
3. Restart affected services
🔧 Temporary Workarounds
Input validation
allValidate MAT files before processing with matio library
Sandbox parsing
allRun matio parsing in isolated containers or sandboxes
🧯 If You Can't Patch
- Restrict access to MAT file parsing functionality to trusted sources only
- Implement network segmentation to isolate systems using matio
🔍 How to Verify
Check if Vulnerable:
Check matio version with 'matio-config --version' or check library version in application dependenciesCheck Version:
matio-config --versionVerify Fix Applied:
Verify matio version is 1.5.29 or later and test with known malicious MAT files📡 Detection & Monitoring
Log Indicators:
- Segmentation fault errors in application logs
- Unexpected process termination of applications using matio
Network Indicators:
- Unusual MAT file uploads to applications
- Network traffic patterns indicating exploitation attempts
SIEM Query:
source="application.logs" AND ("segmentation fault" OR "heap corruption") AND process="*matio*"