Multiple stack-based buffer overflow vulnerabilities exist in the FST LEB128 varint functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the fstReaderVarint32 function.
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1783
https://lists.debian.org/debian-lts-announce/2024/04/msg00007.html