CVE-2023-54392

PocketMine-MP versions = 4.20.0 before 4.22.3 and before 5.2.1 in the 5.x branch fail to validate NBT tag types in BlockActorDataPacket. A player can crash the server by sending a packet containing sign NBT data with an incorrect tag type, triggering an unhandled UnexpectedTagTypeException that...

CVE-2023-54392 PocketMine-MP before 4.22.3 Denial of Service via BlockActorDataPacket

PocketMine-MP versions = 4.20.0 before 4.22.3 and before 5.2.1 in the 5.x branch fail to validate NBT tag types in BlockActorDataPacket. A player can crash the server by sending a packet containing sign NBT data with an incorrect tag type, triggering an unhandled UnexpectedTagTypeException that...

CVE-2023-54392

PocketMine-MP versions ≥ 4.20.0 before 4.22.3 (and before 5.2.1 in the 5.x branch) fail to validate NBT tag types in the BlockActorDataPacket . An authenticated player can send a packet containing sign NBT data with an incorrect tag type, triggering an unhandled UnexpectedTagTypeException that te...

EUVD-2023-60622

PocketMine-MP versions = 4.20.0 before 4.22.3 and before 5.2.1 in the 5.x branch fail to validate NBT tag types in BlockActorDataPacket. A player can crash the server by sending a packet containing sign NBT data with an incorrect tag type, triggering an unhandled UnexpectedTagTypeException that...

CVE-2023-54392 PocketMine-MP before 4.22.3 Denial of Service via BlockActorDataPacket

PocketMine-MP versions = 4.20.0 before 4.22.3 and before 5.2.1 in the 5.x branch fail to validate NBT tag types in BlockActorDataPacket. A player can crash the server by sending a packet containing sign NBT data with an incorrect tag type, triggering an unhandled UnexpectedTagTypeException that...

CVE-2023-54392 PocketMine-MP before 4.22.3 Denial of Service via BlockActorDataPacket

PocketMine-MP versions = 4.20.0 before 4.22.3 and before 5.2.1 in the 5.x branch fail to validate NBT tag types in BlockActorDataPacket. A player can crash the server by sending a packet containing sign NBT data with an incorrect tag type, triggering an unhandled UnexpectedTagTypeException that...

CVE-2023-54392: Improper Input Validation

PocketMine-MP versions = 4.20.0 before 4.22.3 and before 5.2.1 in the 5.x branch fail to validate NBT tag types in BlockActorDataPacket. A player can crash the server by sending a packet containing sign NBT data with an incorrect tag type, triggering an unhandled UnexpectedTagTypeException that...

PT-2026-88983

PocketMine-MP versions = 4.20.0 before 4.22.3 and before 5.2.1 in the 5.x branch fail to validate NBT tag types in BlockActorDataPacket. A player can crash the server by sending a packet containing sign NBT data with an incorrect tag type, triggering an unhandled UnexpectedTagTypeException that...

Denial Of Service (DoS)

pocketmine/pocketmine-mp is vulnerable to Denial of Service DoS. The vulnerability is due to a lack of validation in the BlockActorDataPacket, which causes the server to spend a significant amount of time processing a packet, leading to an application crash...

GHSA-7WRV-6H42-W54F PocketMine-MP vulnerable to server crash using badly formatted sign NBT in BlockActorDataPacket

Summary A player sending a packet can cause the server to crash by providing incorrect sign data in NBT in BlockActorDataPacket. Details This vulnerability was discovered using the BlockActorDataPacket, but other packets may also be affected. The player would seem to just need to send an NBT with...

PocketMine-MP vulnerable to server crash using badly formatted sign NBT in BlockActorDataPacket

Summary A player sending a packet can cause the server to crash by providing incorrect sign data in NBT in BlockActorDataPacket. Details This vulnerability was discovered using the BlockActorDataPacket, but other packets may also be affected. The player would seem to just need to send an NBT with...