GHSA-pqp3-8rrw-g8vm: Pocketmine/pocketmine mp PocketMine-MP Vulnerable To Server Crash Vulnerability

HIGH
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CVSS 7.5
Published
Advisory Summary

GHSA-pqp3-8rrw-g8vm is a HIGH (CVSS 7.5) pocketmine-mp vulnerable to server crash vulnerability (General Security Weakness) affecting Pocketmine/pocketmine mp libraries in the Packagist ecosystem. The issue involves pocketmine-mp vulnerable to server crash with certain invalid json payloads in `loginpacket` due to vulnerable dependency. Remediation is available by upgrading affected packages to version 4.20.5, 4.21.1.

GHSA-pqp3-8rrw-g8vm at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-pqp3-8rrw-g8vm
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-pqp3-8rrw-g8vm

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: 4.20.5 
Upgrade pocketmine/pocketmine-mp to 4.20.5
pocketmine/pocketmine-mp fixed: 4.21.1 
Upgrade pocketmine/pocketmine-mp to 4.21.1
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-pqp3-8rrw-g8vm, 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 4.20.5), 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 a bug in [`netresearch/jsonmapper`](https://github.com/cweiske/JsonMapper). The library wasn't doing proper checks when mapping JSON arrays and objects onto scalar model properties such as strings. ### Patches The problem was fixed in a fork of JsonMapper in dktapps/JsonMapper@a31902a31f5b6fdb832f57c0e3a3f16a3b41c012. PocketMine-MP releases 4.20.5 and 4.21.1 have been released with the fix. ### Workarounds - Users of PocketMine-MP source installations may manually install the patched version of JsonMapper by backporting commit pmmp/PocketMine-MP@09668a37d66c6023685a948b7550c918620e98f2. - A plugin may also be able to workaround this issue by using `DataPacketReceiveEvent` to attempt detection of suspicious payloads. An `ErrorException` will be thrown in the crash case, which can be caught by plugins. ### References cweiske/jsonmapper#210

GHSA-pqp3-8rrw-g8vm Affected Pocketmine/pocketmine mp Versions

2 component(s)
Fixed Versions:
4.20.54.21.1
Product / Package Ecosystem Affected Versions Fixed Version
pocketmine/pocketmine-mp
 Packagist
< 4.20.5
4.20.5
pocketmine/pocketmine-mp
 Packagist
≥ 4.21.0
< 4.21.1
4.21.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-pqp3-8rrw-g8vm
Pocketmine/pocketmine mp Source Repository REPOSITORY
https://github.com/cweiske/jsonmapper/pull/210
Security Fix Commit FIX COMMIT
https://github.com/pmmp/PocketMine-MP/commit/09668a37d66c6023685a948b7550c918620e98f2
Security Fix Commit FIX COMMIT
https://github.com/pmmp/netresearch-jsonmapper/commit/a31902a31f5b6fdb832f57c0e3a3f16a3b41c012
Pocketmine/pocketmine mp Source Repository REPOSITORY
https://github.com/pmmp/PocketMine-MP

Frequently Asked Questions

What is GHSA-pqp3-8rrw-g8vm?
GHSA-pqp3-8rrw-g8vm is a security vulnerability in Pocketmine/pocketmine mp involving PocketMine-MP vulnerable to server crash with certain invalid JSON payloads in `LoginPacket` due to vulnerable dependency under General Security Weakness.
Which Pocketmine/pocketmine mp versions are affected?
Affected versions include releases prior to 4.20.5, 4.21.1 across affected packages: pocketmine/pocketmine-mp.
What version fixes GHSA-pqp3-8rrw-g8vm?
Upgrading to 4.20.5, 4.21.1 (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 4.20.5, 4.21.1. Upgrade your dependency to 4.20.5, 4.21.1 or later.
What is the CVSS score of GHSA-pqp3-8rrw-g8vm?
GHSA-pqp3-8rrw-g8vm 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-pqp3-8rrw-g8vm?
GHSA-pqp3-8rrw-g8vm is classified under General Security Weakness.
How can I check Packagist dependencies for GHSA-pqp3-8rrw-g8vm?
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-pqp3-8rrw-g8vm",
  "modified" : "2024-05-15T14:30:56Z",
  "published" : "2023-06-06T01:50:33Z",
  "aliases" : [ ],
  "summary" : "PocketMine-MP vulnerable to server crash with certain invalid JSON payloads in `LoginPacket` due to vulnerable dependency",
  "details" : "### Impact\nAn attacker could crash PocketMine-MP by sending malformed JSON in `LoginPacket`.\n\nThis happened due to a bug in [`netresearch/jsonmapper`](https://github.com/cweiske/JsonMapper). The library wasn't doing proper checks when mapping JSON arrays and objects onto scalar model properties such as strings.\n\n### Patches\nThe problem was fixed in a fork of JsonMapper in dktapps/JsonMapper@a31902a31f5b6fdb832f57c0e3a3f16a3b41c012. PocketMine-MP releases 4.20.5 and 4.21.1 have been released with the fix.\n\n### Workarounds\n- Users of PocketMine-MP source installations may manually install the patched version of JsonMapper by backporting commit pmmp/PocketMine-MP@09668a37d66c6023685a948b7550c918620e98f2.\n- A plugin may also be able to workaround this issue by using `DataPacketReceiveEvent` to attempt detection of suspicious payloads. An `ErrorException` will be thrown in the crash case, which can be caught by plugins.\n\n### References\ncweiske/jsonmapper#210\n",
  "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" : "4.20.5"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "pocketmine/pocketmine-mp"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.21.0"
      }, {
        "fixed" : "4.21.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-pqp3-8rrw-g8vm"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cweiske/jsonmapper/pull/210"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pmmp/PocketMine-MP/commit/09668a37d66c6023685a948b7550c918620e98f2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pmmp/netresearch-jsonmapper/commit/a31902a31f5b6fdb832f57c0e3a3f16a3b41c012"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/pmmp/PocketMine-MP"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-06-06T01:50:33Z",
    "nvd_published_at" : null
  }
}