Description


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`.

Related CPE's


a

bytecodealliance

wasmtime

2

Weaknesses



CWE-212


CWE-226

CVSS impact metrics


CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

8.6 · High

  • CVSS V3.1

  • CVSS V3.0

  • CVSS V2.0

Information


Source identifier

[email protected]

Vulnerability status

Analyzed

Published

2022-11-10T20:15:11.520

2 years ago

Last modified

2022-11-17T16:01:15.650

2 years ago