RUSTSEC-2022-0075

vendorUSosv

Bug in pooling instance allocator

view advisory published 2022-11-10Licence: CC0-1.0

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. Mitigations are described [here](https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-wh6w-3828-g9qf).

01

describes (1)

Related CVEs.

IDseverity exploitable
CVE-2022-39393UShigh8.6—
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 line…
02

references

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