CVE-2021-46486 Explained : Impact and Mitigation

Jsish v3.5.0 contains a SEGV vulnerability in jsi_ArraySpliceCmd at src/jsiArray.c, leading to a Denial of Service (DoS).

Understanding CVE-2021-46486

What is CVE-2021-46486?

Jsish v3.5.0 has a critical SEGV vulnerability in the jsi_ArraySpliceCmd function, allowing for a potential DoS attack.

The Impact of CVE-2021-46486

This vulnerability can be exploited to trigger a DoS condition on systems running Jsish v3.5.0, disrupting normal operations and service availability.

Technical Details of CVE-2021-46486

Vulnerability Description

Jsish v3.5.0 is vulnerable to a SEGV issue that can be abused via the jsi_ArraySpliceCmd function, posing a significant risk to system stability.

Affected Systems and Versions

Affected Version: Jsish v3.5.0

Exploitation Mechanism

The vulnerability in jsi_ArraySpliceCmd can be exploited by an attacker to cause a SEGV fault, resulting in a DoS attack on the target system.

Mitigation and Prevention

Immediate Steps to Take

Implement a workaround or patch provided by the vendor to address the vulnerability promptly.
Monitor vendor communications for updates and security advisories related to Jsish.

Long-Term Security Practices

Regularly update Jsish to the latest secure versions.
Conduct security assessments and code reviews to identify and mitigate potential vulnerabilities.

Patching and Updates

Apply patches released by the Jsish vendor to remediate the vulnerability and enhance system security.