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CVE-2021-33502

Good to know:

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Date: May 24, 2021

The normalize-url package before 4.5.1, 5.x before 5.3.1, and 6.x before 6.0.1 for Node.js has a ReDoS (regular expression denial of service) issue because it has exponential performance for data: URLs.

Language: JS

Severity Score

Related Resources (8)

https://security.netapp.com/advisory/ntap-20210706-0001
https://github.com/sindresorhus/normalize-url/commit/b1fdb5120b6d27a88400d8800e67ff5a22bd2103
https://nvd.nist.gov/vuln/detail/CVE-2021-33502
https://github.com/sindresorhus/normalize-url/releases/tag/v6.0.1
https://access.redhat.com/security/cve/CVE-2021-33502
https://security.netapp.com/advisory/ntap-20210706-0001/
https://github.com/sindresorhus/normalize-url
https://www.mend.io/vulnerability-database/CVE-2021-33502

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Inefficient Regular Expression Complexity

CWE-1333

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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