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certfr-2024-avi-0757 — De multiples vulnérabilités ont été découvertes dans les produits Siemens. Certaines d'entre elles permettent à un atta…

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EUVD-2026-161239

fkie_cve-2024-38355

Socket.IO is an open source, real-time, bidirectional, event-based, communication framework. A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process. This issue is fixed by commit `15af22fc22` which has been included in `socket.io@4.6.2` (released in May 2023). The fix was backported in the 2.x branch as well with commit `d30630ba10`. Users are advised to upgrade. Users unable to upgrade may attach a listener for the "error" event to catch these errors.

GHSA-25hc-qcg6-38wj — socket.io has an unhandled 'error' event

Affected: npm: socket.io

### Impact

A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process.

``` node:events:502 throw err; // Unhandled 'error' event ^

Error [ERR_UNHANDLED_ERROR]: Unhandled error. (undefined) at new NodeError (node:internal/errors:405:5) at Socket.emit (node:events:500:17) at /myapp/node_modules/socket.io/lib/socket.js:531:14 at process.processTicksAndRejections (node:internal/process/task_queues:77:11) { code: 'ERR_UNHANDLED_ERROR', context: undefined } ```

### Affected versions

| Version range | Needs minor update? | |------------------|------------------------------------------------| | `4.6.2...latest` | Nothing to do | | `3.0.0...4.6.1` | Please upgrade to `socket.io@4.6.2` (at least) | | `2.3.0...2.5.0` | Please upgrade to `socket.io@2.5.1` |

### Patches

This issue is fixed by https://github.com/socketio/socket.io/commit/15af22fc22bc6030fcead322c106f07640336115, included in `socket.io@4.6.2` (released in May 2023).

The fix was backported in the 2.x branch today: https://github.com/socketio/socket.io/commit/d30630ba10562bf987f4d2b42440fc41a828119c

### Workarounds

As a workaround for the affected versions of the `socket.io` package, you can attach a listener for the "error" event:

```js io.on("connection", (socket) => { socket.on("error", () => { // ... }); }); ```

### For more information

If you have…

ICSA-24-256-08 — Siemens Industrial Products

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WID-SEC-W-2024-2091 — Siemens SIMATIC WinCC: Mehrere Schwachstellen ermöglichen Denial of Service

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