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How CVE-2025-3160 Works
The vulnerability resides in `Assimp::SceneCombiner::AddNodeHashes` within code/Common/SceneCombiner.cpp. When processing 3D asset files, the function fails to properly validate node hierarchy boundaries, leading to an out-of-bounds read. Attackers can craft malicious files triggering memory access beyond allocated buffers, potentially leaking sensitive data or causing crashes. The issue requires local access but could be weaponized in automated workflows.
DailyCVE Form
Platform: Assimp
Version: 5.4.3
Vulnerability: OOB Read
Severity: Medium
Date: 05/28/2025
Prediction: Patch by 06/15/2025
What Undercode Say:
Exploitation
- Craft a malformed
.fbx/.objfile with oversized node hierarchies.
2. Use `assimp info ` to trigger parsing.
3. Monitor memory leaks via `gdb`:
gdb --args assimp info exploit.obj
Protection
1. Apply patch `a0993658f40d8e13ff5823990c30b43c82a5daf0`.
2. Validate input files with:
import assimp
assimp.tools.verify("file.obj")
Detection
Scan for vulnerable versions:
ldd /usr/bin/assimp | grep "libassimp.so.5.4.3"
Mitigation
1. Use heap hardening:
export GLIBC_TUNABLES=glibc.malloc.check=2
2. Restrict file permissions:
chmod 750 /usr/bin/assimp
Debugging
Enable debug logs:
ASSIMP_LOG_LEVEL=DEBUG assimp info file.obj
References
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
