CVE-2021-46517 : Vulnerability Insights and Analysis

This CVE-2021-46517 article provides insights into a vulnerability affecting Cesanta MJS v2.20.0 with an assertion failure in src/mjs_exec.c.

Understanding CVE-2021-46517

Cesanta MJS v2.20.0 has a vulnerability due to an assertion failure, potentially impacting systems using this version.

What is CVE-2021-46517?

The vulnerability involves an assertion (

mjs_stack_size(&mjs->scopes) > 0

) failure in src/mjs_exec.c within Cesanta MJS v2.20.0.

The Impact of CVE-2021-46517

The vulnerability could lead to potential security breaches or system instability for affected systems utilizing Cesanta MJS v2.20.0.

Technical Details of CVE-2021-46517

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability stems from an assertion failure within src/mjs_exec.c in Cesanta MJS v2.20.0.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Version: n/a (specifically Cesanta MJS v2.20.0)

Exploitation Mechanism

The exact exploitation mechanism for this vulnerability is currently undisclosed.

Mitigation and Prevention

Protective measures to address CVE-2021-46517.

Immediate Steps to Take

Monitor vendor and security advisories for patches or mitigations.
Consider restricting network access to affected systems.
Implement secure coding practices to prevent potential exploitation.

Long-Term Security Practices

Regularly update software and applications to patch security vulnerabilities.
Conduct security audits and assessments regularly to identify and address potential risks.

Patching and Updates

Stay informed about security updates and patches released by vendors to address the vulnerability in Cesanta MJS v2.20.0.