CVE-2018-11595 : What You Need to Know

Espruino before version 1.99 has a vulnerability that allows attackers to trigger a denial of service and potentially escalate privileges. The issue arises from a buffer overflow during syntax parsing.

Understanding CVE-2018-11595

Espruino vulnerability enabling denial of service and privilege escalation.

What is CVE-2018-11595?

Espruino prior to version 1.99 is susceptible to a buffer overflow when processing user input files with crafted content, leading to a denial of service and potential privilege escalation.

The Impact of CVE-2018-11595

Attackers can cause application crashes and potentially escalate privileges by exploiting this vulnerability.

Technical Details of CVE-2018-11595

Details of the vulnerability in Espruino.

Vulnerability Description

Incorrect usage of the strncat function during syntax parsing triggers a buffer overflow.

Affected Systems and Versions

Espruino versions before 1.99 are affected by this vulnerability.

Exploitation Mechanism

Attackers exploit the vulnerability by providing crafted content in user input files, leading to a buffer overflow during syntax parsing.

Mitigation and Prevention

Measures to address CVE-2018-11595.

Immediate Steps to Take

Update Espruino to version 1.99 or newer to mitigate the vulnerability.
Avoid processing untrusted or crafted files to minimize the risk of exploitation.

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 vulnerability.