{"id":34572,"date":"2025-05-05T07:08:37","date_gmt":"2025-05-05T07:08:37","guid":{"rendered":""},"modified":"2025-05-30T17:01:45","modified_gmt":"2025-05-30T23:01:45","slug":"cve-2023-34087-code-execution-vulnerability-in-gtkwave-3-3-115-through-improper-array-index-validation","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2023-34087-code-execution-vulnerability-in-gtkwave-3-3-115-through-improper-array-index-validation\/","title":{"rendered":"<strong>CVE-2023-34087: Code Execution Vulnerability in GTKWave 3.3.115 Through Improper Array Index Validation<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A new cybersecurity threat has emerged, labeled as CVE-2023-34087. This vulnerability exists in the EVCD var len parsing functionality of GTKWave 3.3.115, a renowned open-source waveform viewer. The flaw is due to an improper array index validation, which can <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32849-vulnerability-in-telecontrol-server-basic-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"39433\">potentially lead<\/a> to arbitrary code execution. This means that an attacker could run any command of their choice on the victim&#8217;s system, which could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32857-sql-injection-vulnerability-in-telecontrol-server-basic-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"39774\">lead to system<\/a> compromise or data leakage. The impact of such a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-7224-openvpn-connect-vulnerability-in-macos-versions-3-0-to-3-4-6\/\"  data-wpil-monitor-id=\"41195\">vulnerability is far-reaching and affects anyone using the affected version<\/a> of GTKWave.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2023-34087<br \/>\nSeverity: High (7.8 CVSS score)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3914-potential-arbitrary-file-uploads-and-system-compromise-in-aeropage-sync-for-airtable-wordpress-plugin\/\"  data-wpil-monitor-id=\"41196\">System compromise<\/a> or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-340574715\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 700px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 20px; font-weight: 600; display: flex; align-items: center;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 8px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 40px; height: 40px;\" \/>\r\n    <\/a>\r\n    A new way to communicate\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 12px;\">\r\n    Ameeba Chat is built on encrypted identity, not personal profiles.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 16px;\">\r\n    Message, call, share files, and coordinate with identities kept separate.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 20px;\">\r\n    <li>\u2022 Encrypted identity<\/li>\r\n    <li>\u2022 Ameeba Chat authenticates access<\/li>\r\n    <li>\u2022 Aliases and categories<\/li>\r\n    <li>\u2022 End-to-end encrypted chat, calls, and files<\/li>\r\n    <li>\u2022 Secure notes for sensitive information<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px;\">\r\n    Private communication, rethought.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Download Ameeba Chat<\/a>\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Learn More<\/a>\r\n  <\/div>\r\n<\/div>\r\n<\/div>\n<p>Product | Affected Versions<\/p>\n<p>GTKWave | 3.3.115<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>This exploit works by taking advantage of an improper <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-35994-critical-array-index-validation-vulnerabilities-in-gtkwave\/\"  data-wpil-monitor-id=\"41985\">array index validation<\/a> within the EVCD var len parsing functionality of GTKWave 3.3.115. By crafting a malicious .evcd file, an attacker may lead the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-43958-arbitrary-file-upload-vulnerability-in-hospital-management-system-v4-0\/\"  data-wpil-monitor-id=\"39700\">system to execute arbitrary<\/a> code. The victim&#8217;s system would <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-45428-remote-arbitrary-code-execution-vulnerability-in-tenda-ac9-v1-0-firmware\/\"  data-wpil-monitor-id=\"40040\">execute this code<\/a> upon opening the malicious file.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2919108713\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<p>Here&#8217;s a conceptual example of how the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47154-exploitation-of-use-after-free-vulnerability-in-libjs-in-ladybird\/\"  data-wpil-monitor-id=\"51991\">vulnerability might be exploited<\/a>. This is abstract and not actual code, but it serves to illustrate the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-0582-a-potentially-dangerous-memory-leak-vulnerability-in-linux-kernel-s-io-uring-functionality\/\"  data-wpil-monitor-id=\"51990\">potential danger<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\"># Creating a malicious .evcd file\necho &quot;EVCD data with improper array index&quot; &gt; exploit.evcd\n# The malicious file is then sent to the victim, who unknowingly opens it with GTKWave\nvictim$ gtkwave exploit.evcd<\/code><\/pre>\n<p>In this example, &#8220;EVCD data with <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23176-sql-injection-vulnerability-poses-serious-threat-to-data-security\/\"  data-wpil-monitor-id=\"39934\">improper array index&#8221;<\/a> represents the malicious payload that triggers the vulnerability. Upon opening the file in GTKWave, the payload is executed, leading to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-40446-arbitrary-code-execution-vulnerability-in-forkosh-mime-tex\/\"  data-wpil-monitor-id=\"39842\">arbitrary code execution<\/a>.<br \/>\nAs a cybersecurity professional, it is crucial to keep up-to-date with the latest <a href=\"https:\/\/www.ameeba.com\/blog\/sap-netweaver-s-critical-vulnerability-a-silent-threat-looming-over-cybersecurity\/\"  data-wpil-monitor-id=\"39431\">vulnerabilities and threats<\/a>. By understanding the nature of the vulnerability, how it&#8217;s exploited, and its potential impact, we can take the necessary <a href=\"https:\/\/www.ameeba.com\/blog\/uh-cybersecurity-camps-a-crucial-step-towards-securing-our-digital-future\/\"  data-wpil-monitor-id=\"39432\">steps to mitigate these threats and secure<\/a> our systems and data.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A new cybersecurity threat has emerged, labeled as CVE-2023-34087. This vulnerability exists in the EVCD var len parsing functionality of GTKWave 3.3.115, a renowned open-source waveform viewer. The flaw is due to an improper array index validation, which can potentially lead to arbitrary code execution. This means that an attacker could run any command [&hellip;]<\/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,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-34572","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/34572","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=34572"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/34572\/revisions"}],"predecessor-version":[{"id":46527,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/34572\/revisions\/46527"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=34572"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=34572"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=34572"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=34572"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=34572"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=34572"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=34572"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=34572"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=34572"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}