CVE-2021-21267: Regular Expression Denial-of-Service in npm schema-inspector
First published: Fri Mar 19 2021(Updated: )
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.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Schema-inspector Project Schema-inspector | <2.0.0 | |
| Netapp E-series Performance Analyzer | ||
| NetApp OnCommand Insight |
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Reference Links
Frequently Asked Questions
What is CVE-2021-21267?
CVE-2021-21267 is a vulnerability in the Schema-Inspector open-source tool that allows for a denial-of-service attack through email address validation.
What is the severity of CVE-2021-21267?
The severity of CVE-2021-21267 is high with a CVSS score of 7.5.
How does CVE-2021-21267 affect Schema-Inspector?
CVE-2021-21267 affects Schema-Inspector before version 2.0.0, making the email address validation vulnerable to a denial-of-service attack.
What software is affected by CVE-2021-21267?
CVE-2021-21267 affects Schema-Inspector, NetApp E-series Performance Analyzer, and NetApp OnCommand Insight.
How can I fix CVE-2021-21267?
To fix CVE-2021-21267, upgrade Schema-Inspector to version 2.0.0 or later.
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- canonical/netapp oncommand insight