CVE-2022-39393

CVE-2022-39393, GHSA-wh6w-3828-g9qf

pypi/wasmtime

Improper Removal of Sensitive Information Before Storage or Transfer

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.

All versions before 1.0.2, all versions starting from 2.0.0 before 2.0.2

Upgrade to version 1.0.2, 2.0.2 or above.

2022-11-18