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

Wed, 23 Apr 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2022-11-10T00:00:00.000Z

Updated: 2025-04-23T16:39:11.212Z

Reserved: 2022-09-02T00:00:00.000Z

Link: CVE-2022-39393

cve-icon Vulnrichment

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

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

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