Stack-buffer-overflow in spvtools::opt::CompositeInsertToCompositeConstruct

spirv-tools Updated 02 Oct 2025

Summary

17/06/2022

Disclosed on

MEDIUM

Severity

Yes i

Fix available

Medium

Severity

Not published

CVSS Score

OSV-2022-490: Stack-buffer-overflow in spvtools::opt::CompositeInsertToCompositeConstruct. Affects spirv-tools versions >= 088cb1a5c81f45c8e778c4305e8668f3380401e8, < 286e9c1187053b4363fe963636f242263e1e5cd9. Fixed in 286e9c1187053b4363fe963636f242263e1e5cd9. How to fix ↓

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Background

The package under scrutiny is spirv-tools, which is part of the OSS-Fuzz ecosystem. spirv-tools is a set of utilities and libraries for working with SPIR-V, a binary intermediate language for representing shaders and compute kernels. It provides tools for validating, optimizing, and manipulating SPIR-V modules. The vulnerability affects the CompositeInsertToCompositeConstruct function in the spvtools::opt namespace.

Vulnerability Detail

The vulnerability is a stack-buffer-overflow in the CompositeInsertToCompositeConstruct function of the spvtools::opt namespace. It was reported through an OSS-Fuzz report, which identified a stack-buffer-overflow read of 4 bytes. The crash occurs in the InstructionFolder::FoldInstructionInternal function. The severity of the vulnerability is considered MEDIUM. The vulnerability can potentially lead to crashes or arbitrary code execution.

How To Fix

Minimum fixed version

286e9c1187053b4363fe963636f242263e1e5cd9

This is the first release that contains the fix.

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Workaround

No workaround is mentioned for this vulnerability.

Conclusion

In conclusion, the vulnerability is a stack-buffer-overflow in the CompositeInsertToCompositeConstruct function of the spirv-tools package. It can potentially lead to crashes or arbitrary code execution. Developers should update their package to a version that includes the fix. For further support on vulnerability remediation, please contact DevNack.com.

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