CVE-2023-35703

2024-01-0815:15:09

CWE-121

CWE-787

[email protected]

web.nvd.nist.gov

cve-2023-35703

stack-based buffer overflow

fst leb128

arbitrary code execution

malicious file

fst readervarint64

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.1

Confidence

High

EPSS

0.001

Percentile

23.1%

JSON

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 fstReaderVarint64 function.