Remote code execution in Foxit PDF Reader

1) Buffer overflow

EUVDB-ID: #VU21457

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 - Buffer overflow

Exploit availability: No

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

CPE2.3

• cpe:2.3:a:foxit_software:foxit_reader_for_windows:2.2:*:*:*:*:*:*:*
• cpe:2.3:a:foxit_software:foxit_reader_for_windows:2.3:*:*:*:*:*:*:*
• cpe:2.3:a:foxit_software:foxit_reader_for_windows:3.0:*:*:*:*:*:*:*

External links

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

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

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.