GHSA-xh99-hw7h-wf63 – pocketmine/pocketmine-mp

Package

Manager: composer
Name: pocketmine/pocketmine-mp
Vulnerable Version: >=0 <4.0.6

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: N/A pctlN/A

Details

Unchecked validity of Facing values in PlayerActionPacket ### Impact A remote attacker may crash a server by sending `PlayerActionPacket` with invalid facing values (e.g. negative), specifically with `START_BREAK` or `CRACK_BLOCK` actions, or with a `UseItemTransactionData` (typically in `InventoryTransactionPacket`). ### Patches f126479c37ff00a717a828f5271cf8e821d12d6c ### Workarounds Using a plugin, cancel `DataPacketReceiveEvent` if the packet is `PlayerActionPacket` and the facing is outside the range 0-5 when receiving START_BREAK or CRACK_BLOCK actions, or UseItemTransactionData. However, beware that negative values may be legitimate in some cases. ### For more information If you have any questions or comments about this advisory: * Email us at [team@pmmp.io](mailto:team@pmmp.io)

Metadata

Created: 2022-01-13T22:25:44Z
Modified: 2022-01-13T22:08:36Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/01/GHSA-xh99-hw7h-wf63/GHSA-xh99-hw7h-wf63.json
CWE IDs: []
Alternative ID: N/A
Finding: F184
Auto approve: 1