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.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3785-1 gtkwave security update
Debian DSA Debian DSA DSA-5653-1 gtkwave security update
EUVD EUVD EUVD-2023-40690 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 04 Nov 2025 19:30:00 +0000


Thu, 22 May 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: talos

Published:

Updated: 2025-11-04T18:15:16.152Z

Reserved: 2023-06-26T21:28:46.286Z

Link: CVE-2023-36747

cve-icon Vulnrichment

Updated: 2024-08-02T16:52:54.211Z

cve-icon NVD

Status : Modified

Published: 2024-01-08T15:15:14.190

Modified: 2025-11-04T19:15:46.360

Link: CVE-2023-36747

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses