Use After Free Affecting wasmtime package, versions >=0.19.0 <0.30.0


0.0
medium

Snyk CVSS

    Attack Complexity High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.05% (13th percentile)
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NVD
6.3 medium

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  • Snyk ID SNYK-RUST-WASMTIME-1586261
  • published 19 Sep 2021
  • disclosed 19 Sep 2021
  • credit alexcrichton, fitzgen, cfallin

How to fix?

Upgrade wasmtime to version 0.30.0 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free when passing multiple externrefs from the host to guest Wasm content.