{"id":"EUVD-2022-7455","revision":"9ed6b72909cc4a18bb5e86cddbf769e6","records":[{"revision":"9ed6b72909cc4a18bb5e86cddbf769e6","observedAt":"2026-11-03T22:08:31.388+00:00","statement":{"source":"euvd","id":"EUVD-2022-7455","aliases":["CVE-2022-39393","GHSA-wh6w-3828-g9qf"],"title":"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 sn…","description":"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`.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","score":8.6,"severity":null}],"references":["https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-wh6w-3828-g9qf","https://github.com/bytecodealliance/wasmtime/commit/2614f2e9d2d36805ead8a8da0fa0c6e0d9e428a0"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-7455","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Nov 10, 2022, 12:00:00 AM","dateUpdated":"May 2, 2025, 12:51:28 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2022-7455","identifiers":["EUVD-2022-7455","CVE-2022-39393","GHSA-wh6w-3828-g9qf"]},"retained":false,"historicalAffected":[]}],"coverage":[]}