CVE-2021-3803 : Security Advisory and Response
Learn about CVE-2021-3803 impacting fb55/nth-check, an inefficiency in regular expression complexity vulnerability. Find mitigation steps and affected versions here.
A detailed overview of the inefficient regular expression complexity vulnerability in fb55/nth-check.
Understanding CVE-2021-3803
This section delves into the impact, technical details, and mitigation strategies for CVE-2021-3803.
What is CVE-2021-3803?
nth-check, specifically fb55/nth-check, is susceptible to an inefficient regular expression complexity vulnerability.
The Impact of CVE-2021-3803
The vulnerability can lead to high availability impact in affected systems potentially exposed to exploitation.
Technical Details of CVE-2021-3803
Explore the specifics related to the vulnerability, affected systems, and exploitation methods.
Vulnerability Description
CVE-2021-3803 involves fb55/nth-check experiencing inefficiencies in regular expression complexity, leaving it open to exploitation.
Affected Systems and Versions
Versions of fb55/nth-check up to and including 2.0.1 are vulnerable to this inefficiency, marking them as affected.
Exploitation Mechanism
The vulnerability is classified with a high base score due to its potential for causing significant availability impact.
Mitigation and Prevention
Discover the necessary steps to address and prevent the CVE-2021-3803 vulnerability.
Immediate Steps to Take
Users and administrators are advised to apply relevant security updates or patches to mitigate the risk of exploitation.
Long-Term Security Practices
Implementing robust security practices and regularly updating systems can help prevent similar vulnerabilities from surfacing in the future.
Patching and Updates
Stay informed about security advisories and promptly apply patches released by fb55 to safeguard systems against CVE-2021-3803.