CVE-2023-37447 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2023-37447, a vulnerability found in GTKWave 3.3.115 that could lead to arbitrary code execution when triggered by a specially crafted .vcd file.

Understanding CVE-2023-37447

This section delves into the nature of the vulnerability and its potential impact.

What is CVE-2023-37447?

The CVE-2023-37447 vulnerability involves multiple out-of-bounds read vulnerabilities in the VCD var definition section functionality of GTKWave 3.3.115. Opening a malicious .vcd file could result in arbitrary code execution. The specific concern is the out-of-bounds write triggered by the vcd2lxt conversion utility.

The Impact of CVE-2023-37447

The impact of this vulnerability is significant, with a CVSS base score of 7.8 (High). The vulnerability allows attackers to execute arbitrary code, compromising the confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2023-37447

In this section, we will discuss the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability arises from improper restriction of operations within the bounds of a memory buffer (CWE-119). This allows attackers to trigger out-of-bounds read vulnerabilities, leading to potential arbitrary code execution.

Affected Systems and Versions

GTKWave 3.3.115 is the specific version affected by CVE-2023-37447. Users utilizing this version may be at risk of exploitation if they encounter a specially crafted .vcd file.

Exploitation Mechanism

To exploit this vulnerability, an attacker would need to create a specially crafted .vcd file and entice a victim to open it using the vulnerable GTKWave 3.3.115 software. Upon successful opening of the malicious file, the attacker can execute arbitrary code on the victim's system.

Mitigation and Prevention

This section outlines the necessary steps to mitigate the risks posed by CVE-2023-37447 and prevent potential exploitation.

Immediate Steps to Take

Users are advised to update GTKWave to a patched version that addresses the out-of-bounds read vulnerabilities. Additionally, caution should be exercised when opening .vcd files from untrusted or unknown sources.

Long-Term Security Practices

Implementing secure coding practices, regularly updating software, and conducting security audits can help enhance the overall security posture and prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security updates and patches released by GTKWave. It is crucial to promptly apply these patches to protect systems from known vulnerabilities.