Use After Free in Bytecodealliance Cranelift-codegen
CVE-2022-31146
Wasmtime is a standalone runtime for WebAssembly. There is a bug in the Wasmtime's code generator, Cranelift, where functions using reference types may be incorrectly missing metadata required for runtime garbage collection. This means tha…
Vulnerability class: Use-After-Free
EPSS: 0.011 (62.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L.
Affected products
- Bytecodealliance Cranelift-codegen
- Bytecodealliance Wasmtime — versions >= 0.37.0, < 0.38.2, >= 0.84.0, < 0.85.2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory, Mitigation)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Product, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2022-31146?
- CVE-2022-31146 is a medium-severity vulnerability in Bytecodealliance Cranelift-codegen, classified under Use After Free. CVSS score: 6.4/10. Published 2022-07-21.
- How severe is CVE-2022-31146?
- Medium severity. CVSS v3 base score is 6.4 out of 10.