CVE-2019-6771: Foxit Reader AcroForm value Use-After-Free Information Disclosure Vulnerability
First published: Mon Jun 03 2019(Updated: )
This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 2019.010.20098. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of the value property of a Field object within AcroForms. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-8230.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Foxit Reader | <=9.4.1.16828 | |
| Foxit PhantomPDF | <=8.3.9.41099 | |
| Foxit PhantomPDF | >=9.0.0<=9.4.1.16828 | |
| Microsoft Windows | ||
| Foxit PDF Reader |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2019-6771?
CVE-2019-6771 is classified as a medium severity vulnerability.
How do I fix CVE-2019-6771?
To remediate CVE-2019-6771, upgrade to Foxit Reader version 9.4.1.16829 or later.
What types of systems are affected by CVE-2019-6771?
CVE-2019-6771 affects Foxit Reader versions up to 9.4.1.16828 and Foxit PhantomPDF versions up to 9.4.1.16828.
Is user interaction required to exploit CVE-2019-6771?
Yes, user interaction is required for the exploitation of CVE-2019-6771 as the victim must open a malicious file or visit a malicious page.
Can CVE-2019-6771 lead to sensitive information disclosure?
Yes, CVE-2019-6771 allows remote attackers to disclose sensitive information on affected installations.
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