GHSA-92jh-gwch-jq38: Pocketmine/pocketmine mp PocketMine-MP Server Crash With Certain Vulnerability

HIGH
CVSS 7.5
Published
Advisory Summary

GHSA-92jh-gwch-jq38 is a HIGH (CVSS 7.5) pocketmine-mp server crash with certain vulnerability (General Security Weakness) affecting Pocketmine/pocketmine mp libraries in the Packagist ecosystem. The issue involves pocketmine-mp server crash with certain invalid json payloads in `loginpacket` due to dependency vulnerability (again). Remediation is available by upgrading affected packages to version 5.3.1, 4.23.1.

GHSA-92jh-gwch-jq38 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-92jh-gwch-jq38
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 GHSA-92jh-gwch-jq38

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: 5.3.1
Upgrade pocketmine/pocketmine-mp to 5.3.1
pocketmine/pocketmine-mp fixed: 4.23.1
Upgrade pocketmine/pocketmine-mp to 4.23.1
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 GHSA-92jh-gwch-jq38, 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 5.3.1), 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 An attacker could crash PocketMine-MP by sending malformed JSON in `LoginPacket`. This happened due to the particular handling of NULL types in the json mapper which accepts NULL type values in typed arrays which PocketMine-MP did not expect. Code processing arrays in the JSON data could then crash due to unexpected `NULL` elements. ### Patches This problem was fixed in 5.3.1 and 4.23.1 by updating JsonMapper to include the following commit: pmmp/netresearch-jsonmapper@4f90e8dab1c9df331fad7d3d89823404e882668c An upstream patch for this issue was proposed via https://github.com/cweiske/jsonmapper/pull/211; however, as of 2024-05-15, the patch has not been accepted upstream due to debate about how to deal with the behavior. For now, a fork of JsonMapper is used by PocketMine-MP to workaround the issue. ### Workarounds A plugin may handle `DataPacketReceiveEvent` for `LoginPacket` and check that none of the input arrays contain `NULL` where it's not expected, but this is rather cumbersome. ### References Proposed upstream patch for a behavior change: https://github.com/cweiske/jsonmapper/pull/211

GHSA-92jh-gwch-jq38 Affected Pocketmine/pocketmine mp Versions

2 component(s)
Fixed Versions:
5.3.14.23.1
Product / Package Ecosystem Affected Versions Fixed Version
pocketmine/pocketmine-mp
Packagist
≥ 5.0.0
< 5.3.1
5.3.1
pocketmine/pocketmine-mp
Packagist
< 4.23.1
4.23.1

References

Frequently Asked Questions

What is GHSA-92jh-gwch-jq38?
GHSA-92jh-gwch-jq38 is a security vulnerability in Pocketmine/pocketmine mp involving PocketMine-MP server crash with certain invalid JSON payloads in `LoginPacket` due to dependency vulnerability (again) under General Security Weakness.
Which Pocketmine/pocketmine mp versions are affected?
Affected versions include releases prior to 5.3.1, 4.23.1 across affected packages: pocketmine/pocketmine-mp.
What version fixes GHSA-92jh-gwch-jq38?
Upgrading to 5.3.1, 4.23.1 (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 5.3.1, 4.23.1. Upgrade your dependency to 5.3.1, 4.23.1 or later.
What is the CVSS score of GHSA-92jh-gwch-jq38?
GHSA-92jh-gwch-jq38 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 GHSA-92jh-gwch-jq38?
GHSA-92jh-gwch-jq38 is classified under General Security Weakness.
How can I check Packagist dependencies for GHSA-92jh-gwch-jq38?
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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-92jh-gwch-jq38",
  "modified" : "2024-05-23T20:46:33Z",
  "published" : "2023-09-14T17:10:37Z",
  "aliases" : [ ],
  "summary" : "PocketMine-MP server crash with certain invalid JSON payloads in `LoginPacket` due to dependency vulnerability (again)",
  "details" : "### Impact\nAn attacker could crash PocketMine-MP by sending malformed JSON in `LoginPacket`.\n\nThis happened due to the particular handling of NULL types in the json mapper which accepts NULL type values in typed arrays which PocketMine-MP did not expect.\n\n Code processing arrays in the JSON data could then crash due to unexpected `NULL` elements.\n\n### Patches\nThis problem was fixed in 5.3.1 and 4.23.1 by updating JsonMapper to include the following commit: pmmp/netresearch-jsonmapper@4f90e8dab1c9df331fad7d3d89823404e882668c\n\nAn upstream patch for this issue was proposed via https://github.com/cweiske/jsonmapper/pull/211; however, as of 2024-05-15, the patch has not been accepted upstream due to debate about how to deal with the behavior. For now, a fork of JsonMapper is used by PocketMine-MP to workaround the issue.\n\n### Workarounds\nA plugin may handle `DataPacketReceiveEvent` for `LoginPacket` and check that none of the input arrays contain `NULL` where it's not expected, but this is rather cumbersome.\n\n### References\nProposed upstream patch for a behavior change: https://github.com/cweiske/jsonmapper/pull/211",
  "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" : "5.0.0"
      }, {
        "fixed" : "5.3.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 5.3.0"
    }
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "pocketmine/pocketmine-mp"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.23.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 4.23.0"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-92jh-gwch-jq38"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pmmp/netresearch-jsonmapper/commit/4f90e8dab1c9df331fad7d3d89823404e882668c"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/pmmp/PocketMine-MP"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-09-14T17:10:37Z",
    "nvd_published_at" : null
  }
}