CVE-2024-34249: pywasm3 contains a heap buffer overflow which leads to segmentation fault

May 6, 2024 (updated June 9, 2026)

wasm3 v0.5.0 was discovered to contain a heap buffer overflow which leads to segmentation fault via the function “DeallocateSlot” in wasm3/source/m3_compile.c.

References

github.com/advisories/GHSA-mq9p-qw76-q6h7
github.com/pypa/advisory-database/tree/main/vulns/pywasm3/PYSEC-2024-308.yaml
github.com/wasm3/pywasm3/blob/main/wasm3/m3_compile.c
github.com/wasm3/wasm3/issues/485
nvd.nist.gov/vuln/detail/CVE-2024-34249

Code Behaviors & Features

Detect and mitigate CVE-2024-34249 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →