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Advisories

PocketMine-MP before 5.39.2 Item Duplication via Despawn State

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severity
medium
date
Affecting

  • PocketMine-MP >= 0, < 5.39.2

CWE
  • CWE-664 Improper Control of a Resource Through its Lifetime
CVSS
6.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
kostamax27, dktapps
Description
PocketMine-MP versions before 5.39.2 fail to validate entity despawn state when processing attack packets from clients. Attackers can exploit a race condition by attacking a disconnecting player to trigger multiple death handlers, causing inventory items and experience to drop multiple times for duplication.

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