CVE-2022-39393 (GCVE-0-2022-39393)
Vulnerability from cvelistv5
Published
2022-11-10 00:00
Modified
2025-05-02 12:51
Severity ?
8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CWE
  • CWE-226 - Sensitive Information in Resource Not Removed Before Reuse
Summary
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 snapshot of the prior instance can be visible, erroneously to the next instance. This bug has been patched and users should upgrade to Wasmtime 2.0.2 and 1.0.2. Other mitigations include disabling the pooling allocator and disabling the `memory-init-cow`.
References
Impacted products
Vendor Product Version
bytecodealliance wasmtime Version: >= 2.0.0, < 2.0.2
Version: < 1.0.2
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