Description
A vulnerability classified as problematic was found in Open Asset Import Library Assimp 5.4.3. This vulnerability affects the function Assimp::MDLImporter::ParseTextureColorData of the file code/AssetLib/MDL/MDLMaterialLoader.cpp of the component MDL File Handler. The manipulation of the argument mWidth/mHeight leads to resource consumption. The attack can be initiated remotely. Upgrading to version 6.0 is able to address this issue. The name of the patch is 5d2a7482312db2e866439a8c05a07ce1e718bed1. It is recommended to apply a patch to fix this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Open Asset Import Library | Assimp | 5.4.3 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | assimp | 6.0.2+ds-1 | — |
| Debian 13 | assimp | No fix yet | — |
| Debian 12 | assimp | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | assimp | No fix yet | — |
| Ubuntu 26.04 LTS | assimp | No fix yet | — |
| Ubuntu 25.10 | assimp | No fix yet | — |
| Ubuntu 24.04 LTS | assimp | No fix yet | — |
| Ubuntu 22.04 LTS | assimp | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | assimp | No fix yet | — |
| Ubuntu 18.04 LTS | assimp | No fix yet | — |
| Ubuntu 16.04 LTS | assimp | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP6 | assimp | 5.3.1-bp156.3.9.1 | openSUSE-SU-2025:0113-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | assimp | 5.4.3-5.1 | openSUSE-SU-2025:14950-1 |
| openSUSE Leap 15.6 | assimp | 5.3.1-bp156.3.9.1 | openSUSE-SU-2025:0113-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | qt5-qt3d +2 | 5.15.3-1.amzn2.0.5 | ALAS2-2025-2848 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | pyassimp | <= 5.4.3 | — | PYSEC-2025-262 |
Advisories 3
- openSUSE-SU-2025:0113-1 Security update for assimp SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2025:14950-1 assimp-devel-5.4.3-5.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2025-2848 Moderate: qt5-qt3d security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · May 13, 2025
References
- VDB-302068 | Open Asset Import Library Assimp MDL File MDLMaterialLoader.cpp ParseTextureColorData resource consumption vdb-entry technical-description
- VDB-302068 | CTI Indicators (IOB, IOC, TTP, IOA) signature permissions-required
- Submit #524593 | Open Asset Import Library Assimp >=5.4.3 Uncontrolled Memory Allocation third-party-advisory
- https://github.com/assimp/assimp/issues/6022 issue-tracking
- https://github.com/assimp/assimp/pull/6046 issue-tracking
- https://github.com/assimp/assimp/commit/5d2a7482312db2e866439a8c05a07ce1e718bed1 patch