Advisory Details

September 12th, 2023

Foxit PDF Reader PDF File Parsing Use-After-Free Remote Code Execution Vulnerability

ZDI-23-1429
ZDI-CAN-21880

CVE ID CVE-2023-42096
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Foxit
AFFECTED PRODUCTS PDF Reader
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. 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 PDF 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 Foxit has issued an update to correct this vulnerability. More details can be found at:
https://www.foxit.com/support/security-bulletins.html
DISCLOSURE TIMELINE
  • 2023-08-10 - Vulnerability reported to vendor
  • 2023-09-12 - Coordinated public release of advisory
CREDIT Anonymous
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