Advisory Published

ZDI-19-635: Foxit Reader Format String 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 processing of the util.printf Javascript method. The application processes the %p parameter in the format string, allowing heap addresses to be returned to the script. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.

Affected SoftwareAffected VersionHow to fix
Foxit PDF Reader

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Frequently Asked Questions

  • What is the severity of ZDI-19-635?

    The severity of ZDI-19-635 is classified as moderate due to its potential for information disclosure.

  • How do I fix ZDI-19-635?

    To fix ZDI-19-635, you should update Foxit Reader to the latest version as provided by the vendor.

  • What kind of attacks can exploit ZDI-19-635?

    ZDI-19-635 can be exploited through social engineering techniques, requiring users to visit malicious web pages or open malicious files.

  • What are the effects of ZDI-19-635?

    The primary effect of ZDI-19-635 is the potential unauthorized disclosure of sensitive information from affected Foxit Reader installations.

  • Is user interaction required to exploit ZDI-19-635?

    Yes, user interaction is mandatory to exploit ZDI-19-635 as the target must either visit a malicious page or open a malicious file.

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