CVE-2023-35956
7.8
HIGH
CVSS 3.1
EPSS 0.07%
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`.
How to fix CVE-2023-35956
To remediate CVE-2023-35956, upgrade the affected package to a fixed version below.
- —upgrade to 3.3.104+really3.3.118-0+deb11u1 or later
Is CVE-2023-35956 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.3.104+really3.3.118-0+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |