PDF-XChange Editor RTF File Parsing Uninitialized Variable Remote Code Execution Vulnerability

September 17th, 2024
ZDI-24-1265 ZDI-CAN-24481

CVE ID

CVE-2024-8842

CVSS Score

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

Affected Vendors

PDF-XChange

Affected Products

PDF-XChange Editor

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code 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 RTF files. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process.

Additional Details

Fixed in version 10.4.0.388 (https://www.pdf-xchange.com/index.php/support/security-bulletins.html)


Disclosure Timeline

  • 2024-06-26 - Vulnerability reported to vendor
  • 2024-09-17 - Coordinated public release of advisory
  • 2024-09-17 - Advisory Updated

Credit

Rocco Calvi (@TecR0c) with TecSecurity

Back to Advisories