CVE-2023-35956

7.8 HIGH
Published: January 08, 2024 Modified: November 04, 2025
View on NVD

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`.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/04/msg00007.html
Source: talos-cna@cisco.com
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1785
Source: talos-cna@cisco.com
Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/04/msg00007.html
Source: af854a3a-2127-422b-91ae-364da2661108
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1785
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1785
Source: af854a3a-2127-422b-91ae-364da2661108

5 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
0.1%
22th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-119 CWE-119

Affected Vendors

tonybybell

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