Description
Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 VCDATA parsing 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 decompression function `fastlz_decompress`.
Published: 2024-01-08
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

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-2023-39940 Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 VCDATA parsing 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 decompression function `fastlz_decompress`.
History

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


Tue, 17 Jun 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Tonybybell Gtkwave
cve-icon MITRE

Status: PUBLISHED

Assigner: talos

Published:

Updated: 2025-11-04T18:14:52.378Z

Reserved: 2023-06-20T18:27:13.647Z

Link: CVE-2023-35956

cve-icon Vulnrichment

Updated: 2025-11-04T18:14:52.378Z

cve-icon NVD

Status : Modified

Published: 2024-01-08T15:15:10.620

Modified: 2025-11-04T19:15:44.057

Link: CVE-2023-35956

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses