PDF-XChange Editor EMF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

Vulnerability Details

This vulnerability allows remote attackers to disclose sensitive information on affected installations of PDF-XChange Editor. 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 parsing of EMF 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 buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

Additional Details

Fixed in version 10.3.1.387 (https://www.pdf-xchange.com/index.php/support/security-bulletins.html)

Disclosure Timeline

• 2024-06-06 - Vulnerability reported to vendor
• 2024-09-17 - Coordinated public release of advisory
• 2024-09-17 - Advisory Updated

Credit

Rocco Calvi (@TecR0c) with TecSecurity

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