Description
An out-of-bounds read vulnerability in VrmlData_IndexedLineSet::TShape in the VRML parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because coordIndex values from parsed input are used as direct array indices without validation against the size of the coordinate array during geometry processing.
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 | opencascade | No fix yet | — |
| Debian 13 | opencascade | No fix yet | — |
| Debian 12 | opencascade | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | opencascade | No fix yet | — |
| Ubuntu 26.04 LTS | opencascade | No fix yet | — |
| Ubuntu 25.10 | opencascade | No fix yet | — |
| Ubuntu 24.04 LTS | opencascade | No fix yet | — |
| Ubuntu 22.04 LTS | opencascade | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | opencascade | No fix yet | — |