CVE-2021-46501 Explained : Impact and Mitigation

Jsish v3.5.0 was discovered to contain a heap-use-after-free vulnerability via SortSubCmd in src/jsiArray.c, potentially leading to a Denial of Service (DoS) attack.

Understanding CVE-2021-46501

This CVE involves a critical vulnerability in Jsish v3.5.0 that could be exploited to trigger a DoS incident.

What is CVE-2021-46501?

The vulnerability in Jsish v3.5.0 allows for a heap-use-after-free issue through SortSubCmd in src/jsiArray.c, opening the door for a potential DoS attack.

The Impact of CVE-2021-46501

Exploiting this vulnerability could result in a Denial of Service situation where attackers may disrupt the normal functioning of the affected system.

Technical Details of CVE-2021-46501

This section covers the technical aspects of the CVE in depth.

Vulnerability Description

Jsish v3.5.0 is susceptible to a heap-use-after-free flaw through SortSubCmd in src/jsiArray.c, which attackers could leverage to execute a DoS attack.

Affected Systems and Versions

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Exploitation Mechanism

The vulnerability can be exploited by malicious actors to cause a DoS by triggering the heap-use-after-free scenario.

Mitigation and Prevention

Protecting systems from CVE-2021-46501 is crucial to ensure security and stability.

Immediate Steps to Take

Apply official patches or updates provided by the vendor to fix the vulnerability.
Monitor for any abnormal system behavior that could indicate a DoS attack.

Long-Term Security Practices

Regularly update and patch software to protect against known vulnerabilities.
Conduct security assessments and audits to identify and address weaknesses in software.

Patching and Updates

Stay informed about security advisories and updates related to Jsish to apply patches promptly.