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wasmtime vulnerabilities

Vulnerabilities published for wasmtime in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 1

  1. CVE-2021-39216

    Medium · CVSS 6.3EPSS 0.31%Fix available

    Use after free passing `externref`s to Wasm in Wasmtime

    Wasmtime is an open source runtime for WebAssembly & WASI. In Wasmtime from version 0.19.0 and before version 0.30.0 there was a use-after-free bug when passing `externref`s from the host to guest Wasm content. To trigger the bug, you have to explicitly pass multiple `externref`s from the host to a Wasm instance at the same time, either by passing multiple `externref`s as arguments from host code to a Wasm function, or returning multiple `externref`s to Wasm from a multi-value return function defined in the host. If you do not have host code that matches one of these shapes, then you are not impacted. If Wasmtime's `VMExternRefActivationsTabl

    wasmtime wasmtime
    • Update to 0.30.0
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

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