GHSA-pr99-c33p-fwf6: Drupal/core Denial of Service Vulnerability

MODERATE
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CVSS 5.3
Published
Advisory Summary

GHSA-pr99-c33p-fwf6 is a MODERATE (CVSS 5.3) denial of service vulnerability (General Security Weakness) affecting Drupal/core libraries in the Packagist ecosystem. The issue involves drupal core denial of service. Remediation is available by upgrading affected packages to version 8.7.11, 8.8.1.

GHSA-pr99-c33p-fwf6 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-pr99-c33p-fwf6
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification General Security Weakness
Affected Product Drupal/core
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.3

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:L).

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 Low (A:L)

How to Fix GHSA-pr99-c33p-fwf6

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

drupal/core fixed: 8.7.11 
Upgrade drupal/core to 8.7.11
drupal/core fixed: 8.8.1 
Upgrade drupal/core to 8.8.1
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 drupal/core

How to Check if You Are Affected

To determine whether your application is affected by GHSA-pr99-c33p-fwf6, inspect your project dependencies for Drupal/core:

inspect dependencies for drupal/core

Analyze the terminal output to locate any version of Drupal/core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.7.11), 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 Drupal/core, 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

A visit to install.php can cause cached data to become corrupted. This could cause a site to be impaired until caches are rebuilt.

GHSA-pr99-c33p-fwf6 Affected Drupal/core Versions

2 component(s)
Fixed Versions:
8.7.118.8.1
Product / Package Ecosystem Affected Versions Fixed Version
drupal/core
 Packagist
≥ 8.0.0
< 8.7.11
8.7.11
drupal/core
 Packagist
≥ 8.8.0
< 8.8.1
8.8.1

References

Drupal/core Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/2019-12-18-1.yaml
Drupal/core Source Repository REPOSITORY
https://github.com/drupal/core
www.drupal.org/sa-core-2019-009 WEB
https://www.drupal.org/sa-core-2019-009

Frequently Asked Questions

What is GHSA-pr99-c33p-fwf6?
GHSA-pr99-c33p-fwf6 is a security vulnerability in Drupal/core involving Drupal core Denial of Service under General Security Weakness.
Which Drupal/core versions are affected?
Affected versions include releases prior to 8.7.11, 8.8.1 across affected packages: drupal/core.
What version fixes GHSA-pr99-c33p-fwf6?
Upgrading to 8.7.11, 8.8.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is drupal/core affected?
Yes, drupal/core is affected in releases prior to 8.7.11, 8.8.1. Upgrade your dependency to 8.7.11, 8.8.1 or later.
What is the CVSS score of GHSA-pr99-c33p-fwf6?
GHSA-pr99-c33p-fwf6 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with GHSA-pr99-c33p-fwf6?
GHSA-pr99-c33p-fwf6 is classified under General Security Weakness.
How can I check Packagist dependencies for GHSA-pr99-c33p-fwf6?
Run the dependency tree command: 'inspect dependencies for drupal/core'. 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-pr99-c33p-fwf6",
  "modified" : "2024-05-15T20:38:38Z",
  "published" : "2024-05-15T20:38:38Z",
  "aliases" : [ ],
  "summary" : "Drupal core Denial of Service",
  "details" : "A visit to install.php can cause cached data to become corrupted. This could cause a site to be impaired until caches are rebuilt.\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.0.0"
      }, {
        "fixed" : "8.7.11"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.8.0"
      }, {
        "fixed" : "8.8.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/2019-12-18-1.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/drupal/core"
  }, {
    "type" : "WEB",
    "url" : "https://www.drupal.org/sa-core-2019-009"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-15T20:38:38Z",
    "nvd_published_at" : null
  }
}