Advisory Details

October 7th, 2022

PDF-XChange Editor U3D File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-22-1384
ZDI-CAN-18662

CVE ID CVE-2022-42393
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 parsing of U3D files. Crafted data in a U3D file can trigger 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 PDF-XChange has issued an update to correct this vulnerability. More details can be found at:
https://www.tracker-software.com/product/pdf-xchange-editor/history
DISCLOSURE TIMELINE
  • 2022-09-06 - Vulnerability reported to vendor
  • 2022-10-07 - Coordinated public release of advisory
CREDIT Mat Powell of Trend Micro Zero Day Initiative
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