CVE-2025-3015
📋 TL;DR
This critical vulnerability in Assimp's ASE file handler allows remote attackers to trigger out-of-bounds memory reads by manipulating specially crafted ASE files. This affects any application using Assimp 5.4.3 or earlier to process ASE 3D model files. Attackers can potentially cause crashes or leak sensitive memory contents.
💻 Affected Systems
- Open Asset Import Library (Assimp)
📦 What is this software?
Assimp by Assimp
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, though out-of-bounds read typically limits this to information disclosure or denial of service.
Likely Case
Application crashes (denial of service) or memory content leakage when processing malicious ASE files.
If Mitigated
No impact if ASE file processing is disabled or proper input validation is implemented.
🎯 Exploit Status
Exploit details are publicly disclosed in GitHub issues, making weaponization straightforward. Attack requires delivering malicious ASE file to vulnerable system.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Assimp 6.0
Vendor Advisory: https://github.com/assimp/assimp/commit/7c705fde418d68cca4e8eff56be01b2617b0d6fe
Restart Required: Yes
Instructions:
1. Update Assimp to version 6.0 or later. 2. Recompile any applications using Assimp. 3. Restart affected services. 4. Verify the patch commit 7c705fde418d68cca4e8eff56be01b2617b0d6fe is present.
🔧 Temporary Workarounds
Disable ASE file processing
allDisable ASE file handler in Assimp configuration to prevent exploitation
Modify Assimp configuration to exclude ASE importer
Input validation for ASE files
allImplement strict validation of ASE files before processing
Add file validation layer before passing to Assimp
🧯 If You Can't Patch
- Implement network segmentation to isolate systems processing 3D files
- Deploy application-level firewalls to block malicious ASE files
🔍 How to Verify
Check if Vulnerable:
Check Assimp version: if version <= 5.4.3 and ASE processing is enabled, system is vulnerable.Check Version:
assimp version (CLI) or check library version in applicationVerify Fix Applied:
Verify Assimp version is 6.0+ and check for commit 7c705fde418d68cca4e8eff56be01b2617b0d6fe in source.📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing ASE files
- Memory access violation errors in logs
- Unusual ASE file processing patterns
Network Indicators:
- Unexpected ASE file uploads to web applications
- Network traffic containing ASE files to vulnerable endpoints
SIEM Query:
source="application.log" AND ("ASE" OR "Assimp") AND ("crash" OR "segmentation fault" OR "access violation")🔗 References
- https://github.com/assimp/assimp/commit/7c705fde418d68cca4e8eff56be01b2617b0d6fe
- https://github.com/assimp/assimp/issues/6021
- https://github.com/assimp/assimp/issues/6021#issue-2877378829
- https://github.com/assimp/assimp/pull/6045
- https://vuldb.com/?ctiid.302067
- https://vuldb.com/?id.302067
- https://vuldb.com/?submit.524589
- https://github.com/assimp/assimp/issues/6021
