CVE-2023-37577 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2023-37577, a use-after-free vulnerability in GTKWave 3.3.115 that can lead to arbitrary code execution when a specially crafted .vcd file is opened.

Understanding CVE-2023-37577

This section covers what CVE-2023-37577 entails, its impact, technical details, and mitigation strategies.

What is CVE-2023-37577?

CVE-2023-37577 is a use-after-free vulnerability in the VCD get_vartoken realloc functionality of GTKWave 3.3.115. Opening a malicious .vcd file can trigger these vulnerabilities, leading to arbitrary code execution.

The Impact of CVE-2023-37577

The vulnerability poses a high risk, with a CVSS base score of 7.8 and high impact on confidentiality, integrity, and availability. A victim must open a malicious file to exploit this vulnerability.

Technical Details of CVE-2023-37577

This section delves into the vulnerability description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

Multiple use-after-free vulnerabilities exist in GTKWave 3.3.115, particularly in the VCD get_vartoken realloc functionality. The issues arise when a specially crafted .vcd file is processed.

Affected Systems and Versions

GTKWave version 3.3.115 is affected by this vulnerability. Users with this version are at risk of arbitrary code execution when handling malicious .vcd files.

Exploitation Mechanism

The use-after-free vulnerability in GTKWave can be exploited by an attacker by tricking a victim into opening a manipulated .vcd file, thereby executing arbitrary code.

Mitigation and Prevention

This section outlines steps to mitigate the CVE-2023-37577 vulnerability and prevent potential exploitation.

Immediate Steps to Take

Users are advised to update GTKWave to a patched version, avoid opening untrusted .vcd files, and exercise caution when handling file conversions.

Long-Term Security Practices

Maintain system hygiene by regularly updating software, implementing robust security measures, and educating users on safe file handling practices.

Patching and Updates

Stay informed about security updates for GTKWave, apply patches promptly, and follow best practices to enhance system security.