CVE-2021-3918 (High) detected in json-schema-0.2.3.tgz

[mend-for-github-com]

CVE-2021-3918 - High Severity Vulnerability

Vulnerable Library - json-schema-0.2.3.tgz

JSON Schema validation and specifications

Library home page: https://registry.npmjs.org/json-schema/-/json-schema-0.2.3.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/json-schema/package.json

Dependency Hierarchy:

• request-2.88.2.tgz (Root Library)
  • http-signature-1.2.0.tgz
    • jsprim-1.4.1.tgz
      • ❌ json-schema-0.2.3.tgz (Vulnerable Library)

Found in HEAD commit: 629683dceefd49a342fae2a3130db303042f3ca2

Found in base branch: master

Vulnerability Details

json-schema is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Publish Date: 2021-11-13

URL: CVE-2021-3918

CVSS 3 Score Details (9.8)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://nvd.nist.gov/vuln/detail/CVE-2021-3918

Release Date: 2021-11-13

Fix Resolution: json-schema - 0.4.0

[michal-bures]

Classified as low urgency, since we don't depend on the vulnerable code. The vulnerable http-signature library is used by the request package only when you use the httpSignature option (https://github.com/request/request/blob/3c0cddc7c8eb60b470e9519da85896ed7ee0081e/request.js#L367), which we don't. Since addressing the vulnerability means we need to replace the entire deprecated requests library with an alternative, this will be addressed as part of a scheduled larger rewrite of node-loggly-bulk.