CVE-2021-46511 Explained : Impact and Mitigation

This CVE-2021-46511 article provides details on a vulnerability in Cesanta MJS v2.20.0 related to an assertion failure in src/mjs_core.c.

Understanding CVE-2021-46511

This section dives into the specifics of the CVE-2021-46511 vulnerability.

What is CVE-2021-46511?

The vulnerability involves an assertion failure

m->len >= sizeof(v)

in Cesanta MJS v2.20.0.

The Impact of CVE-2021-46511

The assertion failure in Cesanta MJS v2.20.0 could lead to potential security risks and system compromise.

Technical Details of CVE-2021-46511

Exploring the technical aspects of CVE-2021-46511.

Vulnerability Description

An assertion failure

m->len >= sizeof(v)

occurs at src/mjs_core.c in Cesanta MJS v2.20.0.

Affected Systems and Versions

Affected Product: n/a
Affected Vendor: n/a
Affected Version: n/a

Exploitation Mechanism

The vulnerability can be exploited by triggering the assertion failure condition in the source file.

Mitigation and Prevention

Understanding how to mitigate and prevent the CVE-2021-46511 vulnerability.

Immediate Steps to Take

Update to a patched version of Cesanta MJS that addresses the assertion failure.
Monitor for any suspicious activities on the system.

Long-Term Security Practices

Regularly update software to ensure all known vulnerabilities are patched.
Implement proper code review practices to catch such assertion failures early.

Patching and Updates

Stay informed about security updates and apply patches promptly to prevent exploitation of CVE-2021-46511.