Use After Free Affecting wasmtime package, versions >=0.34.0 <0.34.2 >=0.35.0 <0.35.2


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.21% (60th percentile)

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  • Snyk ID SNYK-RUST-WASMTIME-2438404
  • published 1 Apr 2022
  • disclosed 31 Mar 2022
  • credit Unknown

How to fix?

Upgrade wasmtime to version 0.34.2, 0.35.2 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free when both running Wasm that uses externrefs and enabling epoch interruption in Wasmtime.

References

CVSS Scores

version 3.1
Expand this section

Snyk

Recommended
8.8 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

NVD

9.8 critical