Description
MaterialX is an open standard for the exchange of rich material and look-development content across applications and renderers. In version 1.39.2, nested imports of MaterialX files can lead to a crash via stack memory exhaustion, due to the lack of a limit on the "import chain" depth. When parsing file imports, recursion is used to process nested files; however, there is no limit imposed to the depth of files that can be parsed by the library. By building a sufficiently deep chain of MaterialX files one referencing the next, it is possible to crash the process using the MaterialX library via stack exhaustion. This is fixed in version 1.39.3.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
None
Availability (Vulnerable System)
Low
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
E
Physical
Affected products
- AcademySoftwareFoundation / MaterialX>= 1.39.2, < 1.39.3 – >= 1.39.2, < 1.39.3
References
- VENDOR_ADVISORYhttps://github.com/AcademySoftwareFoundation/MaterialX/security/advisories/GHSA-qc2h-74x3-4v3w
- PATCHhttps://github.com/AcademySoftwareFoundation/MaterialX/pull/2233/commits/6182c07467297416a30d148ab531d81198686dc5
- MISChttps://github.com/AcademySoftwareFoundation/MaterialX/blob/main/documents/Specification/MaterialX.Specification.md#mtlx-file-format-definition
- PATCHhttps://github.com/AcademySoftwareFoundation/MaterialX/releases/tag/v1.39.3