Description
PocketMine-MP before 4.2.10 fails to validate the total length of incoming chat message blobs before splitting them by newline characters, allowing attackers to send large messages containing many newlines. Malicious clients can send megabyte-sized chat packets and bombard the server with thousands of such messages, causing server lockups lasting seconds or minutes.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| pmmp | PocketMine-MP | < 4.2.10 | 4.2.10 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | pocketmine/pocketmine-mp | < 4.2.10 | 4.2.10 | GHSA-gj94-v4p9-w672 |
References
- GitHub Security Advisory (GHSA-gj94-v4p9-w672) vendor-advisory
- Patch Commit patch
- VulnCheck Advisory: PocketMine-MP before 4.2.10 Denial of Service via Chat Messages third-party-advisory