CVE-2018-17292

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-09-21 · updated 2026-06-17
Weakness: CWE-125

Description

An issue was discovered in WAVM before 2018-09-16. The loadModule function in Include/Inline/CLI.h lacks checking of the file length before a file magic comparison, allowing attackers to cause a Denial of Service (application crash caused by out-of-bounds read) by crafting a file that has fewer than 4 bytes.

Affected products

Webassembly Virtual Machine Project Webassembly Virtual Machine: before 2018-09-16 — fixed in 2018-09-16

How to fix

Upgrade to a fixed version: Webassembly Virtual Machine Project Webassembly Virtual Machine 2018-09-16. Check the vendor advisory for mitigations.

References

https://github.com/WAVM/WAVM/commit/2de6cf70c5ef31e22ed119a25ac2daeefd3d18a1
https://github.com/WAVM/WAVM/issues/109
https://github.com/WAVM/WAVM/commit/2de6cf70c5ef31e22ed119a25ac2daeefd3d18a1
https://github.com/WAVM/WAVM/issues/109

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