CVE-2021-4188 : Security Advisory and Response
Learn about CVE-2021-4188 affecting mruby/mruby with a vulnerability leading to NULL Pointer Dereference. Find out the impact, affected systems, and mitigation steps.
mruby is vulnerable to NULL Pointer Dereference.
Understanding CVE-2021-4188
This CVE describes a vulnerability in mruby/mruby that can lead to a NULL Pointer Dereference.
What is CVE-2021-4188?
mruby/mruby is affected by a vulnerability that could be exploited to cause a NULL Pointer Dereference, potentially leading to a denial of service.
The Impact of CVE-2021-4188
The impact of this vulnerability in mruby/mruby could result in a service disruption due to the NULL Pointer Dereference.
Technical Details of CVE-2021-4188
In-depth technical details of the vulnerability include:
Vulnerability Description
The vulnerability in mruby/mruby leads to a NULL Pointer Dereference, making it susceptible to a denial of service attack.
Affected Systems and Versions
The affected product is mruby/mruby with versions less than 3.1.
Exploitation Mechanism
The vulnerability can be exploited locally with low attack complexity.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-4188, consider the following steps:
Immediate Steps to Take
Apply vendor patches or updates to address the vulnerability in mruby/mruby.
Long-Term Security Practices
Regularly monitor and update software to prevent vulnerabilities like NULL Pointer Dereference.
Patching and Updates
Stay informed about security patches and updates for mruby/mruby to protect against potential exploits.