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`.
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History
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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
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2022-11-10T20:15:11.520
Modified: 2022-11-17T16:01:15.650
Link: CVE-2022-39393
Redhat
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