Multiple use-after-free vulnerabilities exist in the VCD get_vartoken realloc functionality of GTKWave 3.3.115. A specially crafted .vcd file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the use-after-free when triggered via the vcd2vzt conversion utility.
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1806
https://lists.debian.org/debian-lts-announce/2024/04/msg00007.html