CVE-2022-35923 : Security Advisory and Response

A vulnerability has been discovered in v8n, a JavaScript validation library, where versions prior to 1.5.1 exhibit an inefficient regular expression complexity in the

lowercase()

and

uppercase()

functions, potentially leading to denial of service attacks. Users are strongly advised to upgrade to mitigate this issue.

Understanding CVE-2022-35923

This section will delve into what CVE-2022-35923 is, its impact, technical details, and how to mitigate and prevent exploits.

What is CVE-2022-35923?

v8n, a JavaScript validation library, versions below 1.5.1 suffer from inefficient regular expression complexity in the

lowercase()

and

uppercase()

functions, making them susceptible to denial of service attacks.

The Impact of CVE-2022-35923

The vulnerability in v8n with CVE-2022-35923 poses a high availability impact with a CVSS base score of 7.5. The issue can be exploited over a network with low attack complexity, requiring no user interaction.

Technical Details of CVE-2022-35923

Explore the technical specifics of CVE-2022-35923 including vulnerability description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The vulnerability arises due to an inefficient regular expression complexity in the

lowercase()

and

uppercase()

regex functions in v8n versions prior to 1.5.1, potentially leading to denial of service attacks.

Affected Systems and Versions

Versions of v8n below 1.5.1 are impacted by this vulnerability, specifically in the

lowercase()

and

uppercase()

functions.

Exploitation Mechanism

Malicious actors can exploit this vulnerability by sending specially crafted payloads to the affected

lowercase()

and

uppercase()

functions, leading to denial of service.

Mitigation and Prevention

Discover the steps to take for immediate mitigation and long-term security practices to safeguard against CVE-2022-35923 exploitation.

Immediate Steps to Take

Users should upgrade to v8n version 1.5.1 or later to address this vulnerability. There are currently no known workarounds.

Long-Term Security Practices

In addition to upgrading v8n, following secure coding practices and regular security updates are essential to prevent and mitigate similar vulnerabilities.

Patching and Updates

Stay informed about security patches and updates from v8n to protect against potential exploits.