{"id":37121,"date":"2025-05-11T10:11:10","date_gmt":"2025-05-11T10:11:10","guid":{"rendered":""},"modified":"2025-05-18T05:40:28","modified_gmt":"2025-05-18T05:40:28","slug":"cve-2023-39234-code-execution-vulnerability-in-gtkwave-3-3-115","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2023-39234-code-execution-vulnerability-in-gtkwave-3-3-115\/","title":{"rendered":"CVE-2023-39234: Code Execution Vulnerability in GTKWave 3.3.115<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The Common Vulnerabilities and Exposures (CVE) system recently identified a grave vulnerability, CVE-2023-39234, in GTKWave 3.3.115. This vulnerability, which stems from multiple out-of-bounds write vulnerabilities, poses a significant risk to any system or network that employs the affected versions of GTKWave.
\nThe vulnerability specifically concerns the VZT vzt_rd_process_block autosort functionality of GTKWave<\/a> 3.3.115. The impact could be severe, potentially leading to system<\/a> compromise or data leakage if a user inadvertently opens a malicious .vzt file.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2023-39234
\nSeverity: High (CVSS: 7.8)
\nAttack Vector: Remote
\nPrivileges Required: None
\nUser Interaction: Required
\nImpact: System compromise and potential<\/a> data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

GTKWave | 3.3.115<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability resides in the VZT vzt_rd_process_block autosort functionality of GTKWave<\/a>. An attacker can exploit this vulnerability<\/a> by creating a specially crafted .vzt file that triggers multiple out-of-bounds write vulnerabilities. When a user opens this malicious file, the vulnerability is triggered, leading to arbitrary code execution<\/a>. This can potentially compromise the entire system or lead<\/a> to data leakage.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

For illustration purposes, let’s consider an oversimplified example of how such a malicious .vzt file might look. Note that this is purely conceptual and should not be taken as a real exploit.<\/p>\n

# Malicious VZT file content\nBEGIN VZT\nCODE EXECUTION\nOUT-OF-BOUND WRITE\nEND VZT<\/code><\/pre>\n
In this example, the malicious content within the .vzt file could trigger the vulnerability when processed by the affected version of GTKWave<\/a>, leading to arbitrary code execution.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
Users and administrators are advised to apply the vendor patch as soon as possible. If a patch is not immediately available or applicable, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. These tools can potentially detect and block attempts at exploiting this vulnerability<\/a>.
\nAlways follow best practices for cybersecurity hygiene, such as not opening files from untrusted sources and regularly updating all software<\/a>, to reduce the risk of falling victim to such attacks.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The Common Vulnerabilities and Exposures (CVE) system recently identified a grave vulnerability, CVE-2023-39234, in GTKWave 3.3.115. This vulnerability, which stems from multiple out-of-bounds write vulnerabilities, poses a significant risk to any system or network that employs the affected versions of GTKWave. The vulnerability specifically concerns the VZT vzt_rd_process_block autosort functionality of GTKWave 3.3.115. The […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[86,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-37121","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow","attack_vector-rce"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t