CVE-2018-17292 : Vulnerability Insights and Analysis

WAVM prior to 2018-09-16 is vulnerable to a Denial of Service attack due to a lack of file length validation in the loadModule function.

Understanding CVE-2018-17292

A vulnerability in WAVM could allow attackers to crash applications through a crafted file.

What is CVE-2018-17292?

This CVE identifies a flaw in WAVM that enables a Denial of Service attack by exploiting a missing file length check.

The Impact of CVE-2018-17292

The vulnerability could lead to application crashes, potentially disrupting services and causing downtime.

Technical Details of CVE-2018-17292

WAVM's loadModule function lacks proper file length validation, allowing attackers to trigger out-of-bounds reads.

Vulnerability Description

The issue in WAVM before 2018-09-16 arises from inadequate file length verification in the loadModule function.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: All versions prior to 2018-09-16

Exploitation Mechanism

Attackers can create a file with less than 4 bytes to exploit the vulnerability, leading to a Denial of Service.

Mitigation and Prevention

Immediate action and long-term security practices are crucial to mitigate the risks associated with CVE-2018-17292.

Immediate Steps to Take

Apply patches or updates provided by WAVM promptly.
Monitor for any unusual file activities or crashes that could indicate exploitation.

Long-Term Security Practices

Implement secure coding practices to prevent similar vulnerabilities in the future.
Regularly update and patch software to address known security issues.

Patching and Updates

Ensure that WAVM is updated to a version released after 2018-09-16 to mitigate the vulnerability.