What is the severity of CVE-2018-3939?

CVE-2018-3939 is classified as a high severity vulnerability due to its potential for arbitrary code execution.

How do I fix CVE-2018-3939?

To fix CVE-2018-3939, update Foxit PDF Reader and PhantomPDF to the latest version beyond 9.1.0.5096.

What versions of Foxit Reader are affected by CVE-2018-3939?

CVE-2018-3939 affects Foxit Reader versions up to and including 9.1.0.5096.

Can CVE-2018-3939 be exploited remotely?

Yes, CVE-2018-3939 can be exploited remotely if a user opens a specially crafted malicious PDF document.

What are the potential impacts of exploiting CVE-2018-3939?

Exploitation of CVE-2018-3939 can lead to arbitrary code execution, allowing attackers to take control of the affected system.

Vulnerability/
CVE-2018-3939

high

8.8

CWE

416

1/8/2018

16/9/2024

CVE-2018-3939: Use After Free

First published: Wed Aug 01 2018(Updated: )

An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's PDF Reader, version 9.1.0.5096. A specially crafted PDF document can trigger a previously freed object in memory to be reused, resulting in arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.

Credit: talos-cna@cisco.com

Affected Software	Affected Version	How to fix
Foxit Reader	<=9.1.0.5096
Foxit PhantomPDF	<=9.1.0.5096
Microsoft Windows

Remedy

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

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2018-3939?
CVE-2018-3939 is classified as a high severity vulnerability due to its potential for arbitrary code execution.
How do I fix CVE-2018-3939?
To fix CVE-2018-3939, update Foxit PDF Reader and PhantomPDF to the latest version beyond 9.1.0.5096.
What versions of Foxit Reader are affected by CVE-2018-3939?
CVE-2018-3939 affects Foxit Reader versions up to and including 9.1.0.5096.
Can CVE-2018-3939 be exploited remotely?
Yes, CVE-2018-3939 can be exploited remotely if a user opens a specially crafted malicious PDF document.
What are the potential impacts of exploiting CVE-2018-3939?
Exploitation of CVE-2018-3939 can lead to arbitrary code execution, allowing attackers to take control of the affected system.

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vendor/foxitsoftware
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version/foxit reader/9.1.0.5096
canonical/foxit phantompdf
version/foxit phantompdf/9.1.0.5096
vendor/microsoft
canonical/microsoft windows

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