CVE-2023-42093

Summary

CVE-2023-42093 is a new vulnerability affecting Foxit PDF Reader. This issue involves an Annotation Use-After-Free Information Disclosure vulnerability, which enables remote attackers to uncover sensitive data on susceptible systems. The exploitation of this flaw necessitates user interaction, such as visiting a malicious webpage or opening a malicious file. The underlying cause is the absence of sufficient object validation in the handling of Annotation objects. Attackers can manipulate this weakness to operate on non-existent objects, potentially leading to arbitrary code execution in the current process when combined with other vulnerabilities. This vulnerability, originally identified as ZDI-CAN-21869, was reported to Foxit by the ZDI team.

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