ZDI-21-528: Foxit Reader U3D File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability
This vulnerability allows remote attackers to disclose sensitive information on affected 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 handling of U3D objects embedded in PDF files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary 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-21-528?
The severity of ZDI-21-528 is classified as high due to its potential for remote information disclosure.
How do I fix ZDI-21-528?
To fix ZDI-21-528, users should update Foxit Reader to the latest version available from the official source.
Who is affected by ZDI-21-528?
ZDI-21-528 affects installations of Foxit Reader for Windows.
What does ZDI-21-528 exploit require for activation?
ZDI-21-528 requires user interaction, such as visiting a malicious page or opening a harmful file.
What type of vulnerability is ZDI-21-528?
ZDI-21-528 is an information disclosure vulnerability that allows remote attackers to access sensitive data.
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