Vulnerability identifier: #VU58823

Vulnerability risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-40394

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Gerbv
Web applications / Modules and components for CMS

Vendor: gerbv

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow in the RS-274X aperture macro outline primitive functionality. A remote attacker can use a specially crafted gerber file, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Gerbv: 2.7.0

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External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1405

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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.