CVE-2023-36747

HIGH

GTKWave 3.3.115 - Heap-Based Buffer Overflow via Malicious FST File Handling

Title source: llm

Description

Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex len functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the handling of `len` in `fstWritex` when `beg_time` does not match the start of the time table.

References (3)

Core 3

Core References

Mailing List

https://lists.debian.org/debian-lts-announce/2024/04/msg00007.html

Exploit, Third Party Advisory

https://talosintelligence.com/vulnerability_reports/TALOS-2023-1793

Third Party Advisory

https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1793

Scores

CVSS v3 7.0

EPSS 0.0038

EPSS Percentile 30.0%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-119 CWE-787

Status published

Products (1)

tonybybell/gtkwave 3.3.115

Published Jan 08, 2024

Tracked Since Feb 18, 2026