Vulnerability identifier: #VU83242

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-43646

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
get-func-name
Web applications / Other software

Vendor: Chai.js Assertion Library

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources when parsing malicious input. A remote attacker can trigger resource exhaustion when there is an imbalance in parentheses, which results in excessive backtracking and subsequently increases the CPU load and processing time significantly, and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

get-func-name: 2.0.0

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External links
http://github.com/chaijs/get-func-name/commit/f934b228b5e2cb94d6c8576d3aac05493f667c69
http://github.com/chaijs/get-func-name/security/advisories/GHSA-4q6p-r6v2-jvc5

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.