CVE-2023-38650

HIGH
Published Jan 8, 2024 Modified Nov 4, 2025 CWE-190

Description

Multiple integer overflow vulnerabilities exist in the VZT vzt_rd_block_vch_decode times parsing functionality of GTKWave 3.3.115. A specially crafted .vzt file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the integer overflow when num_time_ticks is not zero.

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CVSS v3.1 Score

7.0
HIGH
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-190 Integer Overflow

Affected Products

Vendor Product
tonybybell gtkwave

References

Frequently Asked Questions

What is CVE-2023-38650? +
Multiple integer overflow vulnerabilities exist in the VZT vzt_rd_block_vch_decode times parsing functionality of GTKWave 3.3.115. A specially crafted .vzt file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the integer overflow when num_time_ticks is not zero. It has a CVSS v3.1 base score of 7.0 (HIGH).
How severe is CVE-2023-38650? +
CVE-2023-38650 has a CVSS v3.1 score of 7.0 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2023-38650? +
CVE-2023-38650 affects products from tonybybell, specifically: gtkwave. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2023-38650? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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