Executive Summary

Informations
Name CVE-2021-21267 First vendor Publication 2021-03-19
Vendor Cve Last vendor Modification 2022-06-30

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21267

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')
50 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 1
Application 2

Sources (Detail)

Source Url
CONFIRM https://github.com/schema-inspector/schema-inspector/security/advisories/GHSA...
https://security.netapp.com/advisory/ntap-20210528-0006/
MISC https://gist.github.com/mattwelke/b7f42424680a57b8161794ad1737cd8f
https://www.npmjs.com/package/schema-inspector

Alert History

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Date Informations
2022-07-01 00:27:43
  • Multiple Updates
2021-05-28 17:22:57
  • Multiple Updates
2021-05-04 14:08:12
  • Multiple Updates
2021-04-22 03:13:20
  • Multiple Updates
2021-03-26 12:37:59
  • First insertion