Upgrade get-func-name Module to Patch Regular Expression Denial of Service Vulnerability

CVECVE-2023-43646
CVSScvssV3_1: 8.6
SourceCVE-2023-43646

The get-func-name module, used to retrieve function names securely in NodeJS and browsers, is affected by a regular expression denial of service (ReDoS) vulnerability in versions prior to 2.0.1.

A ReDoS attack aims to cause the regular expression engine to work excessively by providing a specially crafted input containing an imbalance of parentheses. This can significantly increase the CPU usage and processing time.

Attackers could exploit the vulnerability in get-func-name by passing a long string containing repeated tabs followed by an unbalanced regex pattern as input. This would trigger the vulnerability and cause the program to consume more resources than intended.

While no other impacts were reported, a successful ReDoS attack could potentially be used to launch a denial of service against applications using vulnerable versions of get-func-name.

The good news is that developers have addressed this issue in version 2.0.1 of the module. All users are advised to upgrade to the latest version as soon as possible to protect themselves against such attacks. No workarounds are available for older versions.

By taking a few minutes to update get-func-name, you can help strengthen your applications against ReDoS vulnerabilities and similar regex exploits in the future. Staying on top of security patches is one of the best ways to enhance the safety of the tools and libraries you rely on.

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