CVE-2022-51012 pmmp CVE debrief

Who should care

PocketMine-MP server administrators and developers should assess exposure to denial-of-service attacks via crafted inventory transactions. They should review their current configurations and consider upgrading to PocketMine-MP version 4.2.9 or later. Additionally, they should verify their inventory transaction handling and implement compensating controls to detect and prevent denial-of-service attacks.

Why it matters

PocketMine-MP server administrators should assess exposure to denial-of-service attacks via crafted inventory transactions and prioritize verification of their inventory transaction handling and remediation.

• Denial-of-service attacks via crafted inventory transactions
• Server crashes and instability
• Potential for exploitation by attackers

Technical summary

PocketMine-MP versions before 4.2.9 fail to properly validate NBT data types during deserialization of inventory transaction packets from clients, allowing attackers to send crafted inventory transactions with malformed NBT tags to trigger server crashes and cause denial of service. This vulnerability affects PocketMine-MP server administrators and developers who should assess exposure to denial-of-service attacks via crafted inventory transactions. The vulnerability has a CVSS score of 7.1 and is classified as HIGH severity.

Defensive priority

Server administrators should prioritize verification of their inventory transaction handling and upgrade to PocketMine-MP version 4.2.9 or later if possible.

Recommended defensive actions

• Verify inventory transaction handling and upgrade to PocketMine-MP version 4.2.9 or later if possible
• Monitor server logs for suspicious inventory transaction activity
• Consider implementing compensating controls to detect and prevent denial-of-service attacks
• 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
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional information on affected versions and remediation is limited. Further verification is needed to confirm affected scope and severity. Defenders should review the official advisory and CVE record to validate affected scope, severity, and vendor guidance. They should also check relevant monitoring, detection, and logs for exposed assets that need extra review.

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.