GHSA-g43w-98wp-m694: Silverstripe/framework SilverStripe Framework XML Quadratic Blowup Vulnerability

MODERATE
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CVSS 5.3
CWE-776 CWE-400
Published
Advisory Summary

GHSA-g43w-98wp-m694 is a MODERATE (CVSS 5.3) silverstripe framework xml quadratic blowup vulnerability (CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')) affecting Silverstripe/framework libraries in the Packagist ecosystem. The issue involves silverstripe framework xml quadratic blowup attack. Remediation is available by upgrading affected packages to version 3.1.12.

GHSA-g43w-98wp-m694 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-g43w-98wp-m694
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
Affected Product Silverstripe/framework
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-g43w-98wp-m694

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

silverstripe/framework fixed: 3.1.12 
Upgrade silverstripe/framework to 3.1.12
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 silverstripe/framework

How to Check if You Are Affected

To determine whether your application is affected by GHSA-g43w-98wp-m694, inspect your project dependencies for Silverstripe/framework:

inspect dependencies for silverstripe/framework

Analyze the terminal output to locate any version of Silverstripe/framework in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.1.12), 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 CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion'), where the product uses xml documents and allows their structure to be defined with a document type definition (dtd), but it does not properly control the number of recursive definitions of entities. In Silverstripe/framework, 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 low level vulnerability has been found in the SilverStripe framework, where the Quadratic Blowup Attack could potentially be exploited to affect the performance of a site. See http://mashable.com/2014/08/06/wordpress-xml-blowup-dos/ for a writeup.

GHSA-g43w-98wp-m694 Affected Silverstripe/framework Versions

1 component(s)
Fixed Versions:
3.1.12
Product / Package Ecosystem Affected Versions Fixed Version
silverstripe/framework
 Packagist
< 3.1.12
3.1.12

References

Security Fix Commit FIX COMMIT
https://github.com/silverstripe/silverstripe-framework/commit/7f983c2bae1dc78ca7217e9af364b2fb71dcefe8
Silverstripe/framework Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/framework/SS-2014-017-1.yaml
Silverstripe/framework Source Repository REPOSITORY
https://github.com/silverstripe/silverstripe-framework
Silverstripe/framework Release RELEASE
https://www.silverstripe.org/software/download/security-releases/ss-2014-017-xml-quadratic-blowup-attack

Frequently Asked Questions

What is GHSA-g43w-98wp-m694?
GHSA-g43w-98wp-m694 is a security vulnerability in Silverstripe/framework involving SilverStripe framework XML Quadratic Blowup Attack under CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion').
Which Silverstripe/framework versions are affected?
Affected versions include releases prior to 3.1.12 across affected packages: silverstripe/framework.
What version fixes GHSA-g43w-98wp-m694?
Upgrading to 3.1.12 (or the latest patched release for your respective branch) resolves the vulnerability.
Is silverstripe/framework affected?
Yes, silverstripe/framework is affected in releases prior to 3.1.12. Upgrade your dependency to 3.1.12 or later.
What is the CVSS score of GHSA-g43w-98wp-m694?
GHSA-g43w-98wp-m694 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-g43w-98wp-m694?
GHSA-g43w-98wp-m694 is classified under CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') (The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities.).
How can I check Packagist dependencies for GHSA-g43w-98wp-m694?
Run the dependency tree command: 'inspect dependencies for silverstripe/framework'. 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-g43w-98wp-m694",
  "modified" : "2024-05-23T14:49:39Z",
  "published" : "2024-05-23T14:49:39Z",
  "aliases" : [ ],
  "summary" : "SilverStripe framework XML Quadratic Blowup Attack",
  "details" : "A low level vulnerability has been found in the SilverStripe framework, where the Quadratic Blowup Attack could potentially be exploited to affect the performance of a site.\n\nSee http://mashable.com/2014/08/06/wordpress-xml-blowup-dos/ for a writeup.",
  "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" : "silverstripe/framework"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.1.12"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.1.11"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/silverstripe/silverstripe-framework/commit/7f983c2bae1dc78ca7217e9af364b2fb71dcefe8"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/framework/SS-2014-017-1.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/silverstripe/silverstripe-framework"
  }, {
    "type" : "WEB",
    "url" : "https://www.silverstripe.org/software/download/security-releases/ss-2014-017-xml-quadratic-blowup-attack"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400", "CWE-776" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-23T14:49:39Z",
    "nvd_published_at" : null
  }
}