ZDI-CAN-8231: Foxit Reader AcroForm removeField Use-After-Free Information Disclosure Vulnerability
This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader. 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 removeField method when processing 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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Foxit PDF Reader |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-CAN-8231?
The severity of ZDI-CAN-8231 is considered high due to its potential for remote information disclosure.
How do I fix ZDI-CAN-8231?
To fix ZDI-CAN-8231, users should update to the latest version of Foxit Reader as provided by the vendor.
What type of attack does ZDI-CAN-8231 involve?
ZDI-CAN-8231 involves a remote attack that requires user interaction, such as visiting a malicious page or opening a malicious file.
Who is affected by ZDI-CAN-8231?
ZDI-CAN-8231 affects users of vulnerable installations of Foxit Reader.
What information can be disclosed due to ZDI-CAN-8231?
ZDI-CAN-8231 can potentially disclose sensitive information from vulnerable systems.
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- source/ZDI
- alias/ZDI-19-446
- alias/ZDI-CAN-8231
- alias/CVE-2019-6772
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- vendor/foxit
- canonical/foxit pdf reader