Out-of-Bounds Write Vulnerability in GTKWave 3.3.115's VZT Autosort Functionality

CVE-2023-39235 · HIGH Severity

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Multiple out-of-bounds write vulnerabilities exist in the VZT vzt_rd_process_block autosort functionality of GTKWave 3.3.115. A specially crafted .vzt file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the out-of-bounds write when looping over `lt->num_time_ticks`.

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