CVE-2021-46545 : What You Need to Know

Cesanta MJS v2.20.0 has been identified with a SEGV vulnerability that can result in a Denial of Service (DoS) attack via /lib/x86_64-linux-gnu/libc.so.6+0x4b44b.

Understanding CVE-2021-46545

What is CVE-2021-46545?

Cesanta MJS v2.20.0 contains a vulnerability that allows an attacker to trigger a Denial of Service (DoS) using a specific path.

The Impact of CVE-2021-46545

This vulnerability can potentially lead to a Denial of Service (DoS) attack, disrupting the normal functioning of the affected system.

Technical Details of CVE-2021-46545

Vulnerability Description

The vulnerability in Cesanta MJS v2.20.0 enables attackers to exploit the SEGV vulnerability to cause a Denial of Service (DoS) using a specific path.

Affected Systems and Versions

Affected Systems: Not applicable
Affected Version: Cesanta MJS v2.20.0

Exploitation Mechanism

The vulnerability can be exploited by attackers through a specific path leading to a Denial of Service (DoS) attack.

Mitigation and Prevention

Immediate Steps to Take

Users are advised to update Cesanta MJS to a patched version or apply security fixes provided by the vendor.
Implement firewalls and intrusion detection/prevention systems to block potential exploit attempts.

Long-Term Security Practices

Regularly monitor security mailing lists and vendor notifications for updates on vulnerabilities and patches.
Conduct routine security assessments and penetration testing to identify and address potential weaknesses.

Patching and Updates

Apply patches and updates provided by Cesanta promptly to mitigate the risk of exploitation.