CVE-2021-46488 : Security Advisory and Response

Jsish v3.5.0 was discovered to contain a SEGV vulnerability via jsi_ArrayConcatCmd at src/jsiArray.c, leading to a Denial of Service (DoS).

Understanding CVE-2021-46488

What is CVE-2021-46488?

Jsish v3.5.0 has a vulnerability in jsi_ArrayConcatCmd at src/jsiArray.c that can result in a Denial of Service (DoS) attack.

The Impact of CVE-2021-46488

This vulnerability allows attackers to trigger a SEGV issue, potentially causing a DoS condition.

Technical Details of CVE-2021-46488

Vulnerability Description

CVE ID: CVE-2021-46488
Affected Version: Jsish v3.5.0
Vulnerable Component: jsi_ArrayConcatCmd at src/jsiArray.c
Threat: SEGV vulnerability leading to DoS

Affected Systems and Versions

Affected Version: Jsish v3.5.0
All systems using Jsish v3.5.0 are vulnerable to this issue.

Exploitation Mechanism

The vulnerability can be exploited by crafting specific inputs to trigger the vulnerability in the jsi_ArrayConcatCmd function.

Mitigation and Prevention

Immediate Steps to Take

Users should update Jsish to a patched version to mitigate the vulnerability.
Monitor for any unusual activities on Jsish applications.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Employ input validation mechanisms to prevent malicious inputs.
Conduct regular security assessments to identify and address vulnerabilities.

Patching and Updates

Jsish users are recommended to update to the latest patched version to prevent exploitation of this vulnerability.