CVE-2023-36915 : What You Need to Know

A detailed overview of CVE-2023-36915 highlighting the vulnerability, impact, technical details, and mitigation steps.

Understanding CVE-2023-36915

In-depth information about the integer overflow vulnerabilities present in GTKWave 3.3.115 and the associated risks.

What is CVE-2023-36915?

CVE-2023-36915 involves multiple integer overflow vulnerabilities in the FST fstReaderIterBlocks2 chain_table allocation functionality of GTKWave 3.3.115. These vulnerabilities can be exploited through a specially crafted .fst file, potentially leading to arbitrary code execution. An attacker can trigger these vulnerabilities by enticing a victim to open a malicious file, primarily affecting the allocation of the

chain_table

array.

The Impact of CVE-2023-36915

The CVSS v3.1 base score for CVE-2023-36915 is 7.8, indicating a high-severity vulnerability. The confidentiality, integrity, and availability of affected systems are at significant risk due to the potential for arbitrary code execution resulting from these integer overflow vulnerabilities.

Technical Details of CVE-2023-36915

Exploring the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability arises from integer overflow issues in the FST fstReaderIterBlocks2 chain_table allocation functionality of GTKWave 3.3.115. Crafted .fst files can exploit this flaw to execute arbitrary code.

Affected Systems and Versions

GTKWave version 3.3.115 is confirmed to be impacted by this vulnerability.

Exploitation Mechanism

An attacker can leverage a specially designed .fst file to trigger the integer overflow vulnerabilities, potentially leading to arbitrary code execution.

Mitigation and Prevention

Guidance on immediate steps to take, long-term security practices, and the importance of patching and updates.

Immediate Steps to Take

Users are advised to update GTKWave to a non-vulnerable version, exercise caution when handling untrusted .fst files, and consider implementing additional security measures.

Long-Term Security Practices

Regularly update software, educate users on safe file handling practices, and conduct security assessments to detect and address similar vulnerabilities.

Patching and Updates

Stay informed about security advisories from GTKWave and promptly apply patches or updates to mitigate the risk posed by CVE-2023-36915.