CVE-2024-24583

4.3 MEDIUM

📋 TL;DR

This vulnerability allows an attacker to cause an out-of-bounds read in libigl's readMSH function by providing a specially crafted .msh file. This could lead to information disclosure or application crashes. Users of applications that utilize libigl v2.5.0 for processing .msh files are affected.

💻 Affected Systems

Products:
  • libigl
Versions: v2.5.0
Operating Systems: All platforms using libigl
Default Config Vulnerable: ⚠️ Yes
Notes: Any application using libigl's readMSH function to process .msh files is vulnerable. The vulnerability specifically affects MshLoader::ELEMENT_TRI element processing.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Information disclosure of sensitive memory contents, potential denial of service through application crashes, or possible remote code execution if combined with other vulnerabilities.

🟠

Likely Case

Application crashes or denial of service when processing malicious .msh files, potentially leading to information disclosure of adjacent memory.

🟢

If Mitigated

Limited impact with proper input validation and sandboxing; crashes contained within isolated processes.

🌐 Internet-Facing: MEDIUM - Risk exists if applications process untrusted .msh files from external sources, but requires file upload/processing capability.
🏢 Internal Only: LOW - Typically requires local file access or internal file processing; lower exposure surface.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: MEDIUM

Exploitation requires crafting a malicious .msh file and getting it processed by vulnerable software. No public exploit code is currently known.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check libigl repository for updates beyond v2.5.0

Vendor Advisory: https://github.com/libigl/libigl/issues

Restart Required: Yes

Instructions:

1. Check libigl GitHub repository for security updates. 2. Update to patched version. 3. Recompile applications using libigl. 4. Restart affected services.

🔧 Temporary Workarounds

Input Validation

all

Implement strict validation of .msh file inputs before processing

Sandbox Processing

all

Isolate .msh file processing in sandboxed environments

🧯 If You Can't Patch

  • Restrict .msh file processing to trusted sources only
  • Implement application-level input validation and bounds checking

🔍 How to Verify

Check if Vulnerable:

Check if application uses libigl v2.5.0 and processes .msh files via readMSH function

Check Version:

Check build configuration or dependency files for libigl version

Verify Fix Applied:

Verify libigl version is updated beyond v2.5.0 and test with known malicious .msh files

📡 Detection & Monitoring

Log Indicators:

  • Application crashes when processing .msh files
  • Memory access violation errors
  • Unexpected termination of mesh processing services

Network Indicators:

  • Unusual .msh file uploads to web applications
  • Large volumes of .msh file transfers

SIEM Query:

source="application.log" AND ("segmentation fault" OR "access violation" OR "out of bounds") AND ".msh"

🔗 References

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