Advisory Details

September 8th, 2023

PDF-XChange Editor JPG File Parsing Use-After-Free Remote Code Execution Vulnerability

ZDI-23-1378
ZDI-CAN-21691

CVE ID CVE-2023-42075
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 JPG files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute 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/support/security-bulletins.html
DISCLOSURE TIMELINE
  • 2023-07-27 - Vulnerability reported to vendor
  • 2023-09-08 - Coordinated public release of advisory
CREDIT Anonymous
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