#VU4393 Use-after-free error in Foxit PDF Reader for Windows and Foxit PDF Editor (formerly Foxit PhantomPDF)

Vulnerability identifier: #VU4393

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: N/A

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Foxit PDF Reader for Windows
Client/Desktop applications / Office applications
Foxit PDF Editor (formerly Foxit PhantomPDF)
Client/Desktop applications / Office applications

Vendor: Foxit Software Inc.

Description

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

The vulnerability exists due to use-after-free error when processing dialog boxes while the document closes. A remote attacker can create a specially rafted PDF file, trick the victim into opening it and execute arbitrary code on the target system with privileges of the current user.

Successful exploitation of this vulnerability may allow an attacker co compromise vulnerable system.

Mitigation
Install the latest version 8.2 from vendor's website.

Vulnerable software versions

Foxit PDF Reader for Windows: 8.0.0 - 8.1.4.1208

Foxit PDF Editor (formerly Foxit PhantomPDF): 8.0 - 8.1.1.1115

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External links
https://www.foxitsoftware.com/support/security-bulletins.php
https://www.zerodayinitiative.com/advisories/ZDI-17-034/

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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.