CVE-2023-7332: Pocketmine/pocketmine mp PocketMine-MP Vulnerable To Improperly Checked Vulnerability

HIGH
Advisory Identifier: GHSA-h87r-f4vc-mchv
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CVSS 7.5
Published
Advisory Summary

CVE-2023-7332 is a HIGH (CVSS 7.5) pocketmine-mp vulnerable to improperly checked vulnerability (General Security Weakness) affecting Pocketmine/pocketmine mp libraries in the Packagist ecosystem. The issue involves pocketmine-mp vulnerable to improperly checked dropped item count leading to server crash. Remediation is available by upgrading affected packages to version 4.18.1.

CVE-2023-7332 at a Glance

CVE Identifier CVE-2023-7332
GHSA Identifier GHSA-h87r-f4vc-mchv
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification General Security Weakness
Affected Product Pocketmine/pocketmine mp
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2023-7332

To remediate this vulnerability, upgrade all affected Pocketmine/pocketmine mp dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

pocketmine/pocketmine-mp fixed: 4.18.1 
Upgrade pocketmine/pocketmine-mp to 4.18.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for pocketmine/pocketmine-mp

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-7332, inspect your project dependencies for Pocketmine/pocketmine mp:

inspect dependencies for pocketmine/pocketmine-mp

Analyze the terminal output to locate any version of Pocketmine/pocketmine mp in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.18.1), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Pocketmine/pocketmine mp, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact In 4.18.0, the network handling of inventories was completely revamped. Due to this, a bug was introduced which allowed players to request that the server drop more of an item than they had available in their hotbar. This did not lead to any duplication issues, but instead led to a server crash, and is believed to have been exploited in the wild. ### Patches This was fixed in 58974765a68f63a9968a7ff3a06f584ff2ee08d2, which was released in 4.18.1. ### Workarounds Handle `InventoryTransactionPacket` in `DataPacketReceiveEvent`, and verify that the item count dropped isn't more than the available item count. However, it's complicated to do this, so it's not recommended.

CVE-2023-7332 Affected Pocketmine/pocketmine mp Versions

1 component(s)
Fixed Versions:
4.18.1
Product / Package Ecosystem Affected Versions Fixed Version
pocketmine/pocketmine-mp
 Packagist
< 4.18.1
4.18.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-h87r-f4vc-mchv
Security Fix Commit FIX COMMIT
https://github.com/pmmp/PocketMine-MP/commit/58974765a68f63a9968a7ff3a06f584ff2ee08d2
Pocketmine/pocketmine mp Source Repository REPOSITORY
https://github.com/pmmp/PocketMine-MP
Pocketmine/pocketmine mp Source Repository REPOSITORY
https://github.com/pmmp/PocketMine-MP/blob/4.18.1/changelogs/4.18.md#4181
CVE Official Record — CVE-2023-7332 CVE
https://www.cve.org/cverecord?id=CVE-2023-7332
www.vulncheck.com/advisories/pocketmi... WEB
https://www.vulncheck.com/advisories/pocketmine-mp-improper-validation-of-dropped-item-count-allows-remote-server-crash

Frequently Asked Questions

What is CVE-2023-7332?
CVE-2023-7332 is a security vulnerability in Pocketmine/pocketmine mp involving PocketMine-MP vulnerable to improperly checked dropped item count leading to server crash under General Security Weakness.
Which Pocketmine/pocketmine mp versions are affected?
Affected versions include releases prior to 4.18.1 across affected packages: pocketmine/pocketmine-mp.
What version fixes CVE-2023-7332?
Upgrading to 4.18.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is pocketmine/pocketmine-mp affected?
Yes, pocketmine/pocketmine-mp is affected in releases prior to 4.18.1. Upgrade your dependency to 4.18.1 or later.
What is the CVSS score of CVE-2023-7332?
CVE-2023-7332 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2023-7332?
CVE-2023-7332 is classified under General Security Weakness.
How can I check Packagist dependencies for CVE-2023-7332?
Run the dependency tree command: 'inspect dependencies for pocketmine/pocketmine-mp'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-h87r-f4vc-mchv",
  "modified" : "2025-12-31T21:42:11Z",
  "published" : "2023-06-06T01:51:09Z",
  "aliases" : [ "CVE-2023-7332" ],
  "summary" : "PocketMine-MP vulnerable to improperly checked dropped item count leading to server crash",
  "details" : "### Impact\nIn 4.18.0, the network handling of inventories was completely revamped. Due to this, a bug was introduced which allowed players to request that the server drop more of an item than they had available in their hotbar.\n\nThis did not lead to any duplication issues, but instead led to a server crash, and is believed to have been exploited in the wild.\n\n### Patches\nThis was fixed in 58974765a68f63a9968a7ff3a06f584ff2ee08d2, which was released in 4.18.1.\n\n### Workarounds\nHandle `InventoryTransactionPacket` in `DataPacketReceiveEvent`, and verify that the item count dropped isn't more than the available item count. However, it's complicated to do this, so it's not recommended.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "pocketmine/pocketmine-mp"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.18.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-h87r-f4vc-mchv"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pmmp/PocketMine-MP/commit/58974765a68f63a9968a7ff3a06f584ff2ee08d2"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/pmmp/PocketMine-MP"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pmmp/PocketMine-MP/blob/4.18.1/changelogs/4.18.md#4181"
  }, {
    "type" : "WEB",
    "url" : "https://www.cve.org/cverecord?id=CVE-2023-7332"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/pocketmine-mp-improper-validation-of-dropped-item-count-allows-remote-server-crash"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-06-06T01:51:09Z",
    "nvd_published_at" : null
  }
}