CVE-2021-21267

 

Published at: - 19-03-2021 10:15

Last modified: - 30-06-2022 09:08

Total changes: - 7

Description

Schema-Inspector is an open-source tool to sanitize and validate JS objects (npm package schema-inspector). In before version 2.0.0, email address validation is vulnerable to a denial-of-service attack where some input (for example `a@0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.`) will freeze the program or web browser page executing the code. This affects any current schema-inspector users using any version to validate email addresses. Users who do not do email validation, and instead do other types of validation (like string min or max length, etc), are not affected. Users should upgrade to version 2.0.0, which uses a regex expression that isn't vulnerable to ReDoS.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

 

Verification logic

 

Reference

• https://gist.github.com/mattwelke/b7f42424680a57b8161794ad1737cd8f
• https://www.npmjs.com/package/schema-inspector
• https://github.com/schema-inspector/schema-inspector/security/advisories/GHSA-f38p-c2gq-4pmr
• https://security.netapp.com/advisory/ntap-20210528-0006/

 

Keywords

NVD

 

CVE-2021-21267

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures