#VU76 Use-after-free error in Foxit PDF Reader for Windows and Foxit PDF Editor (formerly Foxit PhantomPDF)

Vulnerability identifier: #VU76

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 installations of Foxit Reader.

The vulnerability exists within FlateDecode. A remote unauthenticated attacker can cause arbitrary code execution by sending a specially crafted PDF with a specific FlateDecode stream, that can force a dangling pointer to be reused after it has been freed.

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

Mitigation
Update your application to the latest versions, which can be found at:

https://www.foxitsoftware.com/support/security-bulletins.php

Vulnerable software versions

Foxit PDF Reader for Windows: 7.3.0.118

Foxit PDF Editor (formerly Foxit PhantomPDF): 7.3.0.118

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External links
https://www.foxitsoftware.com/support/security-bulletins.php

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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.