CVE-2020-25462 : Vulnerability Insights and Analysis

A heap buffer overflow vulnerability in the fxCheckArrowFunction function in Moddable SDK before OS200903.

Understanding CVE-2020-25462

This CVE involves a heap buffer overflow issue in a specific function within Moddable SDK.

What is CVE-2020-25462?

The vulnerability occurs in the fxCheckArrowFunction function at moddable/xs/sources/xsSyntaxical.c:3562 in Moddable SDK before OS200903.

The Impact of CVE-2020-25462

The vulnerability could allow an attacker to execute arbitrary code or crash the application, potentially leading to a denial of service (DoS) condition.

Technical Details of CVE-2020-25462

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability is a heap buffer overflow in the fxCheckArrowFunction function within the specified file and version of Moddable SDK.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: Moddable SDK before OS200903

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a specific input that triggers the buffer overflow, potentially leading to code execution or application crashes.

Mitigation and Prevention

Protecting systems from CVE-2020-25462 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply the latest security patches provided by Moddable-OpenSource.
Monitor for any unusual activities on the system that could indicate exploitation.

Long-Term Security Practices

Conduct regular security assessments and code reviews to identify and address vulnerabilities.
Implement secure coding practices to prevent buffer overflows and other common vulnerabilities.

Patching and Updates

Ensure that the Moddable SDK is updated to version OS200903 or later to mitigate the vulnerability.