CVE-2022-51013 pmmp CVE debrief

Who should care

Server administrators and security teams responsible for managing PocketMine-MP installations should assess exposure and prioritize updating to version 4.2.3 or later to prevent potential server crashes.

Why it matters

CVE-2022-51013 is a vulnerability in PocketMine-MP versions before 4.2.3 that can cause server crashes. Server administrators and security teams should prioritize verifying and updating PocketMine-MP to version 4.2.3 or later to prevent potential server crashes.

• Potential server crashes due to unhandled exceptions in the Durable class
• Need to verify and update PocketMine-MP to version 4.2.3 or later to prevent vulnerability exploitation
• Requires review and validation of damage metadata values in tool and armor item NBT data received from clients

Technical summary

PocketMine-MP versions before 4.2.3 fail to validate damage metadata values in tool and armor item NBT data received from clients. Attackers can send negative or out-of-range damage values in itemstack NBT to trigger unhandled exceptions in the Durable class, causing server crashes. The vulnerability is caused by inadequate input validation and error handling for itemstack NBT data. Server administrators and security teams should prioritize verifying and updating PocketMine-MP to version 4.2.3 or later to prevent potential server crashes.

Defensive priority

Server administrators and security teams should prioritize verifying and updating PocketMine-MP to version 4.2.3 or later to prevent potential server crashes.

Recommended defensive actions

• Verify and update PocketMine-MP to version 4.2.3 or later
• Review and validate damage metadata values in tool and armor item NBT data received from clients
• Implement input validation and error handling for itemstack NBT data
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD entry provide information about the vulnerability in PocketMine-MP versions before 4.2.3. The vulnerability allows attackers to send negative or out-of-range damage values in itemstack NBT to trigger unhandled exceptions in the Durable class, causing server crashes.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.