What is CVE-2022-39393?

CVE-2022-39393 is a high-severity vulnerability in Bytecodealliance Wasmtime, classified under Sensitive Information in Resource Not Removed Before Reuse. CVSS score: 8.6/10. Published 2022-11-10.

How severe is CVE-2022-39393?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Bytecodealliance Wasmtime

CVE-2022-39393

Wasmtime is a standalone runtime for WebAssembly. Prior to versions 2.0.2 and 1.0.2, there is a bug in Wasmtime's implementation of its pooling instance allocator where when a linear memory is reused for another instance the initial heap s…

EPSS: 0.003 (56.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.

Affected products

Bytecodealliance Wasmtime — versions >= 2.0.0, < 2.0.2, < 1.0.2

Weakness classification (CWE)

CWE-226 — Sensitive Information in Resource Not Removed Before Reuse

References

https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-wh6w-3828-g9qf (x_refsource_CONFIRM)
https://github.com/bytecodealliance/wasmtime/commit/2614f2e9d2d36805ead8a8da0fa0c6e0d9e428a0 (x_refsource_MISC)

Frequently asked questions

What is CVE-2022-39393?: CVE-2022-39393 is a high-severity vulnerability in Bytecodealliance Wasmtime, classified under Sensitive Information in Resource Not Removed Before Reuse. CVSS score: 8.6/10. Published 2022-11-10.
How severe is CVE-2022-39393?: High severity. CVSS v3 base score is 8.6 out of 10.