Wasmtime is a standalone runtime for WebAssembly. Prior to version 2.0.2, 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. Other mitigations include disabling the pooling allocator and disabling the `memory-init-cow`.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2022-11-10T00:00:00

Updated: 2024-08-03T12:07:42.224Z

Reserved: 2022-09-02T00:00:00

Link: CVE-2022-39393

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-11-10T20:15:11.520

Modified: 2024-11-21T07:18:11.957

Link: CVE-2022-39393

cve-icon Redhat

No data.