CVE-2019-15767 : Vulnerability Insights and Analysis

GNU Chess 6.2.5 is vulnerable to a stack-based buffer overflow in the cmd_load function when processing manipulated chess positions from an EPD file.

Understanding CVE-2019-15767

In this CVE, a specific vulnerability in GNU Chess 6.2.5 allows for a stack-based buffer overflow, potentially leading to security issues.

What is CVE-2019-15767?

A stack-based buffer overflow occurs in the cmd_load function of GNU Chess 6.2.5 when handling a manipulated chess position from an EPD file.

The Impact of CVE-2019-15767

The vulnerability could be exploited by an attacker to execute arbitrary code or crash the application, posing a risk to the integrity and availability of the system.

Technical Details of CVE-2019-15767

This section delves into the specific technical aspects of the CVE.

Vulnerability Description

The issue arises due to a stack-based buffer overflow in the cmd_load function of GNU Chess 6.2.5 triggered by processing a crafted chess position from an EPD file.

Affected Systems and Versions

Product: GNU Chess 6.2.5
Vendor: GNU Chess
Versions: All versions are affected

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious chess position in an EPD file, causing the buffer overflow in the cmd_load function.

Mitigation and Prevention

Protecting systems from CVE-2019-15767 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update GNU Chess to a patched version that addresses the buffer overflow issue.
Avoid opening chess positions from untrusted or unknown sources.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement proper input validation mechanisms to prevent buffer overflows.

Patching and Updates

Stay informed about security advisories and updates from GNU Chess.