CVE-2024-23950
📋 TL;DR
This vulnerability allows an attacker to execute arbitrary code or cause a denial of service by providing a malicious .msh file to libigl's readMSH functionality. It affects applications that use libigl v2.5.0 to parse MSH files, potentially leading to remote code execution if the application processes untrusted files.
💻 Affected Systems
- libigl
📦 What is this software?
Libigl by Libigl
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with the privileges of the application processing the malicious file, potentially leading to full system compromise.
Likely Case
Application crash (denial of service) or limited memory corruption leading to unstable behavior.
If Mitigated
No impact if file validation prevents processing of untrusted .msh files or if the vulnerability is patched.
🎯 Exploit Status
Exploitation requires crafting a malicious .msh file and getting it processed by vulnerable software.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v2.5.1 or later
Vendor Advisory: https://github.com/libigl/libigl/releases
Restart Required: Yes
Instructions:
1. Update libigl to version 2.5.1 or later. 2. Recompile any applications using libigl. 3. Restart affected services.
🔧 Temporary Workarounds
Disable MSH file processing
allDisable or remove functionality that processes .msh files in applications using libigl.
File validation
allImplement strict validation of .msh files before processing, rejecting files from untrusted sources.
🧯 If You Can't Patch
- Implement network segmentation to isolate systems using vulnerable libigl versions
- Use application allowlisting to prevent execution of untrusted applications that might process malicious files
🔍 How to Verify
Check if Vulnerable:
Check if your application uses libigl v2.5.0 and processes .msh files via readMSH functionality.Check Version:
Check build configuration or dependency files for libigl version referenceVerify Fix Applied:
Verify libigl version is 2.5.1 or later and applications have been recompiled with the updated library.📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing .msh files
- Memory access violation errors in application logs
Network Indicators:
- Unusual file uploads with .msh extension to affected applications
SIEM Query:
source="application_logs" AND ("segmentation fault" OR "access violation" OR "out of bounds") AND process="*libigl*"