GHSA-2m8v-j782-fhvr
Socket.IO: Zero-attachment Memory Exhaustion
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | socket.io-parser | >= 4.0.0, < 4.2.7 | 4.2.7 |
| npm | socket.io-parser | >= 3.4.0, < 3.4.5 | 3.4.5 |
| npm | socket.io-parser | < 3.3.6 | 3.3.6 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
A specially crafted Socket.IO packet can make the server wait for a large number of binary attachments and buffer them, which can be exploited to make the server run out of memory.
### Patches
| Version range | Used by | Fixed version |
|------------------|--------------------------------------------|---------------|
| `>=4.0.0 <4.2.7` | `[email protected]` and `[email protected]` | `4.2.7` |
| `>=3.4.0 <3.4.5` | `[email protected]` | `3.4.5` |
| `<3.3.6` | `[email protected]` | `3.3.6` |
### 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 a discussion [here](https://github.com/socketio/socket.io/discussions)
References
External links from the advisory. They lead to third-party sites.
- https://github.com/socketio/socket.io/security/advisories/GHSA-2m8v-j782-fhvr
- https://github.com/socketio/socket.io/commit/7c6ef571a00656718e9e05e3b948fd1758b2a7b4
- https://github.com/socketio/socket.io/commit/9c6323e5cde41bd75df3379b5fc9293664a5f240
- https://github.com/socketio/socket.io/commit/ced94ffa3ac020a8f3c14eb98a3bf34acb14d291
- https://github.com/socketio/socket.io