#VU21457 Buffer overflow in Foxit PDF Reader for Windows - CVE-2019-5031

Vulnerability identifier: #VU21457

Vulnerability risk: High

CVSSv4.0: 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:P/U:Amber]

CVE-ID: CVE-2019-5031

CWE-ID: CWE-120

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Foxit PDF Reader for Windows
Client/Desktop applications / Office applications

Vendor: Foxit Software Inc.

Description
The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to improper check for unusual or exceptional conditions in the JavaScript engine. A remote attacker can trick a victim to open a specially crafted PDF document, trigger an out-of-memory condition and execute arbitrary arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Foxit PDF Reader for Windows: 2.2 - 9.6.0.25114

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External links
https://www.foxitsoftware.com/support/security-bulletins.php
https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0793

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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. However, proof of concept for this vulnerability is available.