CVE-2021-44994 : Exploit Details and Defense Strategies

This CVE pertains to a vulnerability in Jerryscript 3.0.0, where an assertion check failed in the jmem-heap.c file.

Understanding CVE-2021-44994

This CVE concerns a specific assertion failure within Jerryscript 3.0.0.

What is CVE-2021-44994?

The vulnerability involves an assertion failure stating ''JERRY_CONTEXT (jmem_heap_allocated_size) == 0'' in the jmem-heap.c file of Jerryscript 3.0.0.

The Impact of CVE-2021-44994

The vulnerability could potentially lead to security breaches or system crashes if exploited by malicious actors.

Technical Details of CVE-2021-44994

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability arises from an assertion failure, indicating a specific condition not being met within the jmem-heap.c file of Jerryscript 3.0.0.

Affected Systems and Versions

Product: N/A
Vendor: N/A
Version: 3.0.0 (affected)

Exploitation Mechanism

The exploitation may involve crafting inputs that trigger the failed assertion, potentially leading to denial of service or arbitrary code execution.

Mitigation and Prevention

Here are the necessary steps to mitigate and prevent potential exploitation of CVE-2021-44994.

Immediate Steps to Take

Monitor official sources for patches or updates.
Consider limiting exposure to untrusted inputs.
Implement strict input validation mechanisms.

Long-Term Security Practices

Regularly update software components to patched versions.
Conduct security audits and code reviews to identify and remediate similar vulnerabilities.

Patching and Updates

Stay informed about patches or workarounds provided by Jerryscript.
Apply relevant updates promptly to safeguard systems and prevent exploitation.