#VU85120 Improper Validation of Array Index in GTKWave - CVE-2023-34087

Vulnerability identifier: #VU85120

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-34087

CWE-ID: CWE-129

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
GTKWave
Client/Desktop applications / Multimedia software

Vendor: gtkwave

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error in the EVCD var len parsing functionality. A remote attacker can create a specially crafted .evcd file, trick the victim into opening it using the affected software, trigger an array index error and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

GTKWave: 3.3.90 - 3.3.117

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External links
http://talosintelligence.com/vulnerability_reports/TALOS-2023-1803

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.