CVE-2018-11597 : Vulnerability Insights and Analysis

Espruino before version 1.99 is vulnerable to a denial of service attack due to a buffer overflow issue during syntax parsing. Malicious actors can exploit this vulnerability by crafting a specific input file.

Understanding CVE-2018-11597

Espruino is susceptible to a denial of service attack caused by a buffer overflow vulnerability during syntax parsing.

What is CVE-2018-11597?

Prior to version 1.99, Espruino is prone to a denial of service attack triggered by a buffer overflow vulnerability during syntax parsing of specially crafted input files.

The Impact of CVE-2018-11597

The vulnerability allows attackers to crash the application by exploiting the buffer overflow issue, potentially leading to service disruption.

Technical Details of CVE-2018-11597

Espruino's vulnerability to a denial of service attack due to a buffer overflow during syntax parsing.

Vulnerability Description

The issue arises from a lack of validation for stack exhaustion, particularly when encountering a large number of '{' characters in the jsparse.c file.

Affected Systems and Versions

Espruino versions before 1.99

Exploitation Mechanism

Malicious individuals can exploit the buffer overflow vulnerability by crafting a specific input file.

Mitigation and Prevention

Steps to address and prevent the CVE-2018-11597 vulnerability.

Immediate Steps to Take

Update Espruino to version 1.99 or later to mitigate the vulnerability.
Monitor for any unusual activities that could indicate an ongoing attack.

Long-Term Security Practices

Regularly update software and firmware to patch known vulnerabilities.
Implement input validation mechanisms to prevent buffer overflow attacks.

Patching and Updates

Apply patches and updates provided by Espruino to address the buffer overflow vulnerability.