🛡️ GHSA-xc7j-wj36-qjfr — pocketmine-mp

🟠 CVSS 8.0 — High ✅ No Known Exploit OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

PocketMine-MP BookEditPacket crash when inventory slot in the packet is invalid

Summary

If a client sends a BookEditPacket with InventorySlot greater than 35, the server will crash due to an unhandled exception thrown by BaseInventory->getItem().

Details

Crashes at https://github.com/pmmp/PocketMine-MP/blob/b744e09352a714d89220719ab6948a010ac636fc/src/network/mcpe/handler/InGamePacketHandler.php#L873

PoC

Using Gophertunnel, use serverConn.WritePacket(&packet.BookEdit{InventorySlot: 36})

Impact

Server crash, all servers

Patched versions

This issue was fixed by 47f011966092f275cc1b11f8de635e89fd9651a7, and the fix was released in 5.11.2.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Affected software

GHSA-xc7j-wj36-qjfr is recorded against 1 package.

  • pocketmine/pocketmine-mp (fixed in 5.11.2)

Timeline and source

Published on 6 March 2024 and last revised on 4 December 2024. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
github.com (Web)
github.com (Package)
github.com (Web)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2024-03-06
Updated 2026-08-20
Modified 2024-12-04
Fix URL N/A

Affected Packages

Software From version Fixed in
pocketmine/pocketmine-mp — 5.11.2

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