Inefficient regular expression complexity in nodejs-tmpl - CVE-2021-3777

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Main Vulnerability Database Vulnerabilities #VU103053

Inefficient regular expression complexity in nodejs-tmpl - CVE-2021-3777

Published: January 20, 2025


Vulnerability identifier: #VU103053
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-3777
CWE-ID: CWE-1333
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation when processing untrusted input with a regular expressions. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.


Affected software

nodejs-tmpl
IBM Cloud Pak System

How to mitigate CVE-2021-3777

Install updates from vendor's website.

nodejs-tmpl - update to 1.0.5
IBM Cloud Pak System - update to 2.3.3.5

External References

Related Security Bulletins