CVE-2021-23436 (Critical) detected in immer-1.10.0.tgz

[mend-bolt-for-github]

CVE-2021-23436 - Critical Severity Vulnerability

Vulnerable Library - immer-1.10.0.tgz

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Library home page: https://registry.npmjs.org/immer/-/immer-1.10.0.tgz

Path to dependency file: /react-todolist/package.json

Path to vulnerable library: /node_modules/immer/package.json

Dependency Hierarchy:

• react-scripts-3.0.1.tgz (Root Library)
  • react-dev-utils-9.0.1.tgz
    • ❌ immer-1.10.0.tgz (Vulnerable Library)

Found in base branch: master

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

Direct dependency fix Resolution (react-scripts): 5.0.0

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