CVE-2021-46491 Explained : Impact and Mitigation

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

Understanding CVE-2021-46491

CVE-2021-46491 is a vulnerability in Jsish v3.5.0 that allows attackers to trigger a denial of service (DoS) through a specific command.

What is CVE-2021-46491?

Jsish v3.5.0 has a vulnerability via Jsi_CommandPkgOpts that can be exploited to cause a DoS.

The Impact of CVE-2021-46491

This vulnerability can result in a DoS where the service becomes unavailable to users or systems.

Technical Details of CVE-2021-46491

CVE-2021-46491 involves specific technical details that outline the vulnerability and its potential impact.

Vulnerability Description

Jsish v3.5.0 is susceptible to a SEGV vulnerability via Jsi_CommandPkgOpts, allowing attackers to initiate a Denial of Service (DoS) attack.

Affected Systems and Versions

Affected Version: Jsish v3.5.0

Exploitation Mechanism

The vulnerability can be exploited by crafting a specific input related to Jsi_CommandPkgOpts at src/jsiCmds.c, ultimately leading to a DoS.

Mitigation and Prevention

Addressing CVE-2021-46491 requires immediate action and long-term security practices to safeguard systems.

Immediate Steps to Take

Update Jsish to a patched version, if available.
Implement proper input validation mechanisms to prevent malicious input.

Long-Term Security Practices

Regularly monitor and apply security patches and updates for all software components.
Conduct security audits and assessments to detect vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories related to Jsish and promptly apply patches to mitigate the risk of exploitation.