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Advisories

Wasmtime 47.0.0 before 48.0.8 Denial of Service via TypedFunc Type-Check Panic

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Severity
low
Date
Affecting

  • wasmtime >= 47.0.0, < 48.0.8

  • wasmtime >= 49.0.0, < 49.0.5

  • wasmtime >= 50.0.0, < 50.0.1

CWE
  • CWE-617 Reachable Assertion
CVSS
1.0
CVSS V4 Vector
CVSS:4.0/AV:A/AC:H/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Description
Wasmtime 47.0.0 before 48.0.8, 49.0.0 before 49.0.5, and 50.0.0 before 50.0.1 contains an insufficient type-check in the TypedFunc embedder API for I31, Option<I31>, and Option<NoneRef> parameter or result types, reaching an unreachable!() path. A malicious guest module exporting a function that uses another anyref-hierarchy type can panic the host embedding, causing denial of service.

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