GitHub Advisoryadvisory · npm
GHSA-r7qp-cfhv-p84w Uncaught exception in engine.io
MEDIUM
Official page ↗
- Aliases
- CVE-2022-41940
- Ecosystem
- npm
- Packages
- engine.io
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-248
- Reviewed
- 2022-11-21
Affected packages
• npm engine.io: < 3.6.1 → fixed in 3.6.1
• npm engine.io: >= 4.0.0, < 6.2.1 → fixed in 6.2.1
Description
Impact
A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process.
```
events.js:292
throw er; // Unhandled 'error' event
^
Error: read ECONNRESET
at TCP.onStreamRead (internal/stream_base_commons.js:209:20)
Emitted 'error' event on Socket instance at:
at emitErrorNT (internal/streams/destroy.js:106:8)
at emitErrorCloseNT (internal/streams/destroy.js:74:3)
at processTicksAndRejections (internal/process/task_queues.js:80:21) {
errno: -104,
code: 'ECONNRESET',
syscall: 'read'
}
```
This impacts all the users of the `engine.io` package, including those who uses depending packages like `socket.io`.
Patches
A fix has been released today (2022/11/20):
| Version range | Fixed version |
|-------------------|---------------|
| `[email protected]` | `3.6.1` |
| `[email protected]` | `6.2.1` |
For `socket.io` users:
| Version range | `engine.io` version | Needs minor update? |
|-----------------------------|---------------------|--------------------------------------------------------------------------------------------------------|
| `[email protected]` | `~6.2.0` | `npm audit fix` should be sufficient |
| `[email protected]` | `~6.1.0` | Please upgrade to `[email protected]` |
| `[email protected]` | `~6.0.0` | Please upgrade to `[email protected]` |
| `[email protected]` | `~5.2.0` | Please upgrade to `[email protected]` |
| `[email protected]` | `~5.1.1` | Please upgrade to `[email protected]` |
| `[email protected]` | `~5.0.0` | Please upgrade to `[email protected]` |
| `[email protected]` | `~4.1.0` | Please upgrade to `[email protected]` (see here) |
| `[email protected]` | `~4.0.0` | Please upgrade to `[email protected]` (see here) |
| `[email protected]` | `~3.6.0` | `npm audit fix` should be sufficient |
| `[email protected]` and below | `~3.5.0` | Please upgrade to `[email protected]` |
Workarounds
There is no known workaround except upgrading to a safe version.
For more information
If you have any questions or comments about this advisory:
• Open an issue in `engine.io`
Thanks to Jonathan Neve for the responsible disclosure.
Related
Alias · CVE (1)
- CVE-2022-41940 Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. vulnerability
Weakness · CWE (1)
- CWE-248 Uncaught Exception weakness
References
- https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w web
- https://nvd.nist.gov/vuln/detail/CVE-2022-41940 advisory
- https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6 web
- https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085 web
- https://github.com/socketio/engine.io package