CVE-2023-35992 : Vulnerability Insights and Analysis

This article provides an overview of CVE-2023-35992, detailing the vulnerability found in GTKWave 3.3.115.

Understanding CVE-2023-35992

CVE-2023-35992 is an integer overflow vulnerability discovered in GTKWave 3.3.115, which can result in memory corruption when a specifically crafted .fst file is opened.

What is CVE-2023-35992?

The vulnerability exists in the FST fstReaderIterBlocks2 vesc allocation functionality of GTKWave 3.3.115, affecting 32-bit binaries. An attacker can exploit this by tricking a victim into opening a malicious file, leading to memory corruption.

The Impact of CVE-2023-35992

With a CVSS base score of 7, CVE-2023-35992 is considered a high-severity vulnerability. It can allow an attacker to compromise the confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2023-35992

This section delves into the specific technical aspects of the CVE, including the vulnerability description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The vulnerability in GTKWave 3.3.115 occurs due to an integer overflow in the FST fstReaderIterBlocks2 vesc allocation functionality, leading to memory corruption upon opening a malicious .fst file.

Affected Systems and Versions

GTKWave version 3.3.115, specifically when compiled as a 32-bit binary, is vulnerable to this integer overflow issue.

Exploitation Mechanism

An attacker can exploit CVE-2023-35992 by creating a specially crafted .fst file and enticing a user to open it, triggering the memory corruption vulnerability.

Mitigation and Prevention

To address CVE-2023-35992, immediate steps should be taken to mitigate the risk and prevent potential exploitation.

Immediate Steps to Take

Users should refrain from opening untrusted or suspicious .fst files to avoid falling victim to exploitation of this vulnerability.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security audits, and staying informed about software updates and patches are essential for long-term security.

Patching and Updates

Vendor patches or updates addressing the integer overflow vulnerability in GTKWave 3.3.115 should be promptly applied to mitigate the risk of exploitation.