CVE-2022-39393

Source

https://nvd.nist.gov/vuln/detail/CVE-2022-39393

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-39393.json

Aliases

• GHSA-wh6w-3828-g9qf
• RUSTSEC-2022-0075

Published

2022-11-10T20:15:11Z

Modified

2023-11-29T09:50:29.771111Z

Details

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.

References

• https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-wh6w-3828-g9qf
• https://github.com/bytecodealliance/wasmtime/commit/2614f2e9d2d36805ead8a8da0fa0c6e0d9e428a0