CVE-2021-23436 (High) detected in immer-8.0.1.tgz

[mend-bolt-for-github]

CVE-2021-23436 - High Severity Vulnerability

Vulnerable Library - immer-8.0.1.tgz

Create your next immutable state by mutating the current one

Library home page: https://registry.npmjs.org/immer/-/immer-8.0.1.tgz

Path to dependency file: eslint-changed-files/test-app/package.json

Path to vulnerable library: eslint-changed-files/test-app/node_modules/immer/package.json

Dependency Hierarchy:

• react-scripts-4.0.3.tgz (Root Library)
  • react-dev-utils-11.0.4.tgz
    • ❌ immer-8.0.1.tgz (Vulnerable Library)

Found in base branch: main

Vulnerability Details

This affects the package immer before 9.0.6. A type confusion vulnerability can lead to a bypass of CVE-2020-28477 when the user-provided keys used in the path parameter are arrays. In particular, this bypass is possible because the condition (p === "proto" || p === "constructor") in applyPatches_ returns false if p is ['proto'] (or ['constructor']). The === operator (strict equality operator) returns false if the operands have different type.

Publish Date: 2021-09-01

URL: CVE-2021-23436

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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23436

Release Date: 2021-09-01

Fix Resolution: immer - 9.0.6

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