Description
A heap-buffer-overflow vulnerability was discovered in the SkipSpacesAndLineEnd function in Assimp v5.4.3. This issue occurs when processing certain malformed MD5 model files, leading to an out-of-bounds read and potential application crash.
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 | 5.4.3-3.1 | openSUSE-SU-2024:14610-1 |
| 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-2024-295 |
Advisories 3
- openSUSE-SU-2024:14610-1 assimp-devel-5.4.3-3.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2025:0113-1 Security update for assimp 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