Headline
CVE-2022-39386: Crash on malformed packet
@fastify/websocket provides WebSocket support for Fastify. Any application using @fastify/websocket could crash if a specific, malformed packet is sent. All versions of fastify-websocket are also impacted. That module is deprecated, so it will not be patched. This has been patched in version 7.1.1 (fastify v4) and version 5.0.1 (fastify v3). There are currently no known workarounds. However, it should be possible to attach the error handler manually. The recommended path is upgrading to the patched versions.
Impact
Any application using @fastify/websocket could crash if a specific, malformed packet is sent.
All versions of fastify-websocket are also impacted. That module is deprecated, so it will not be patched.
Patches
This has been patched in v7.1.1 (fastify v4) and v5.0.1 (fastify v3).
Workarounds
No known workaround is available. However, it should be possible to attach the error handler manually.
The recommended path is upgrading to the patched versions.
Credits
marcolanaro for finding and patching this vulnerability
For more information
If you have any questions or comments about this advisory:
- Open an issue in @fastify/websocket
- Email us at [email protected]
Related news
### Impact Any application using @fastify/websocket could crash if a specific, malformed packet is sent. All versions of fastify-websocket are also impacted. That module is deprecated, so it will not be patched. ### Patches This has been patched in v7.1.1 (fastify v4) and v5.0.1 (fastify v3). ### Workarounds No known workaround is available. However, it should be possible to attach the error handler manually. The recommended path is upgrading to the patched versions. ## Credits [marcolanaro](https://github.com/marcolanaro) for finding and patching this vulnerability ### For more information If you have any questions or comments about this advisory: * Open an issue in [@fastify/websocket](https://github.com/fastify/fastify-websocket) * Email us at [[email protected]](mailto:[email protected])