Description
PocketMine-MP versions before 4.2.3 fail to validate damage metadata values in tool and armor item NBT data received from clients. Attackers can send negative or out-of-range damage values in itemstack NBT to trigger unhandled exceptions in the Durable class, causing server crashes.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| pmmp | PocketMine-MP | < 4.2.3 | 4.2.3 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | pocketmine/pocketmine-mp | < 4.2.4 | 4.2.4 | GHSA-46c5-pfj8-fv65 |
References
- GitHub Security Advisory (GHSA-46c5-pfj8-fv65) vendor-advisory
- Patch Commit patch
- VulnCheck Advisory: PocketMine-MP before 4.2.3 Denial of Service via NBT Metadata third-party-advisory