Upcoming security release for Wasmtime

Skip to first unread message

Alex Crichton

Mar 2, 2023, 6:36:38 PM3/2/23
to sec-an...@bytecodealliance.org
The Bytecode Alliance would like to announce a forthcoming security
release of Wasmtime.

The release will be made available on 2023-03-08 at approximately
19:00 UTC. Additionally, an advisory will be made available on the
same date and time at https://github.com/advisories.

The highest severity issue fixed in this release is CRITICAL based on
the classification scheme defined in the OpenSSL Security Policy.

Alex Crichton

Mar 8, 2023, 2:38:42 PM3/8/23
to sec-an...@bytecodealliance.org
[Update 2023-03-08] Security releases available

Wasmtime 6.0.1, 5.0.1, and 4.0.1 are now available on crates.io.
Additionally, binary releases are available on Github for the Wasmtime
C-API shared library and CLI at

This release fixes the following security issues rated CRITICAL:

* Guest-controlled out-of-bounds read/write on x86_64.

This release fixes the following security issues rated LOW:

* Miscompilation of `i8x16.select` with the same inputs on x86_64
Reply all
Reply to author
0 new messages