CVE-2021-46510 : What You Need to Know

Cesanta MJS v2.20.0 contains a vulnerability that leads to an assertion failure in src/mjs_gc.c.

Understanding CVE-2021-46510

What is CVE-2021-46510?

The vulnerability in Cesanta MJS v2.20.0 triggers an assertion failure in the specified source file.

The Impact of CVE-2021-46510

The vulnerability could be exploited for unauthorized access or potential system crashes.

Technical Details of CVE-2021-46510

Vulnerability Description

The vulnerability results in an assertion failure (

s < mjs->owned_strings.buf + mjs->owned_strings.len

) in src/mjs_gc.c.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: Cesanta MJS v2.20.0

Exploitation Mechanism

Attackers could potentially exploit this vulnerability to trigger crashes or other unauthorized actions.

Mitigation and Prevention

Immediate Steps to Take

Monitor vendor updates for patches or security advisories.
Consider a temporary workaround if no patch is available.

Long-Term Security Practices

Regularly update software to the latest secure versions.
Employ network security measures to mitigate potential attacks.
Conduct security audits and code reviews.

Patching and Updates

Apply patches or updates provided by Cesanta to address this vulnerability.