PDF-XChange Editor util Out-Of-Bounds Read Information Disclosure Vulnerability

August 17th, 2023
ZDI-23-1126 ZDI-CAN-19483

CVE ID

CVE-2023-39487

CVSS Score

3.3 AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Affected Vendors

PDF-XChange

Affected Products

PDF-XChange Editor

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 handling of util objects. By performing actions in JavaScript, an attacker can trigger 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.

Additional Details

Fixed in PDF-XChange Editor V9 (9.5.368) and V10 (10.0.1)
https://www.tracker-software.com/product/pdf-xchange-editor/history


Disclosure Timeline

  • 2022-11-23 - Vulnerability reported to vendor
  • 2023-08-17 - Coordinated public release of advisory

Credit

Suyue Guo and Wei You from Renmin University of China

Back to Advisories