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CVE-2023-39443

HIGHCVSS 7.8/10EPSS 0.43%

Last modified

CVE-2023-39443 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Multiple out-of-bounds write vulnerabilities exist in the LXT2 parsing functionality of GTKWave 3.3.115. A specially-crafted .lxt2 file can lead to arbitrary code execution. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

Multiple out-of-bounds write vulnerabilities exist in the LXT2 parsing functionality of GTKWave 3.3.115. A specially-crafted .lxt2 file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the out-of-bounds write perfomed by the prefix copy loop.

Metrics

CVSS 3.1
7.8/10

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

EPSS Probability
0.43%

34.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
TonybybellGtkwave3.3.115

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-39443?
Multiple out-of-bounds write vulnerabilities exist in the LXT2 parsing functionality of GTKWave 3.3.115. A specially-crafted .lxt2 file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the out-of-bounds write perfomed by the prefix copy loop.
How severe is CVE-2023-39443?
CVE-2023-39443 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.
How do I fix CVE-2023-39443?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST