{"id":"CVE-2023-38653","details":"Multiple integer overflow vulnerabilities exist in the VZT vzt_rd_block_vch_decode dict parsing functionality of GTKWave 3.3.115. A specially crafted .vzt file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the integer overflow when num_time_ticks is zero.","modified":"2026-03-13T07:42:12.697866Z","published":"2024-01-08T15:15:22.190Z","references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/04/msg00007.html"},{"type":"WEB","url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1815"},{"type":"EVIDENCE","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2023-1815"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-38653.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"3.3.115"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}