CVE-2021-46480 : What You Need to Know

Jsish v3.5.0 was discovered to contain a heap buffer overflow vulnerability via jsiValueObjDelete in src/jsiEval.c, potentially leading to a Denial of Service (DoS) attack.

Understanding CVE-2021-46480

This CVE identifies a specific vulnerability in Jsish v3.5.0 that could be exploited to cause a Denial of Service (DoS) condition.

What is CVE-2021-46480?

CVE-2021-46480 refers to a vulnerability in Jsish v3.5.0 involving a heap buffer overflow via jsiValueObjDelete in src/jsiEval.c, which could be abused to trigger a Denial of Service (DoS) attack.

The Impact of CVE-2021-46480

The vulnerability has the potential to disrupt the normal functioning of Jsish v3.5.0, leading to a possible Denial of Service (DoS) scenario impacting availability.

Technical Details of CVE-2021-46480

This section delves into the technical aspects of the CVE.

Vulnerability Description

Jsish v3.5.0 suffers from a heap buffer overflow vulnerability through jsiValueObjDelete in src/jsiEval.c, which could allow attackers to crash the application or execute malicious code.

Affected Systems and Versions

Affected Version: Jsish v3.5.0

Exploitation Mechanism

The vulnerability can be exploited by an attacker sending specially crafted input to the vulnerable jsiValueObjDelete function, resulting in a heap buffer overflow.

Mitigation and Prevention

Protecting systems from CVE-2021-46480 requires immediate action and long-term security measures.

Immediate Steps to Take

Consider applying the latest patches or updates from the Jsish project.
Monitor for any unusual or suspicious activities related to heap manipulation.

Long-Term Security Practices

Implement secure coding practices to prevent buffer overflow vulnerabilities.
Regularly update and patch software to address known security issues.

Patching and Updates

Ensure all applicable patches for Jsish v3.5.0 are applied promptly to mitigate the risk posed by this vulnerability.