Description
PocketMine-MP versions before 5.3.1 and 4.23.1 fail to validate that the identityPublicKey in LoginPacket uses the required secp384r1 elliptic curve. Attackers can provide LoginPackets with keys using different curves or non-EC key types to pass login verification but trigger an uncaught exception during ECDH key derivation, crashing the server.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| pmmp | PocketMine-MP | < 4.23.1, 5.2.0 – < 5.3.1 | 4.23.1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | pocketmine/pocketmine-mp | >= 5.2.0, < 5.3.1 | 5.3.1 | GHSA-79rc-jjh6-rc89 |
References
- GitHub Security Advisory (GHSA-79rc-jjh6-rc89) vendor-advisory
- Patch Commit patch
- VulnCheck Advisory: PocketMine-MP 5.2.0 Server Crash via Incorrect EC Curve third-party-advisory