Advisory Details

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Kofax Power PDF. 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 PNG files.
The issue results from the lack of proper validation of user-supplied data, which can result in 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.

07/27/23 – ZDI reported the vulnerabilities to the vendor
07/07/23 – The vendor acknowledged the reports
07/31/23 – The vendor confirmed the issues
12/15/23 – The vendor communicated that the cases would be fixed in Q2 2024
12/15/23 – ZDI notified the vendor of the intention to publish the cases as 0-day advisories

-- Mitigation: Given the nature of the vulnerability, the only salient mitigation strategy is to restrict interaction with the application.

• 2023-07-27 - Vulnerability reported to vendor
• 2023-12-21 - Coordinated public release of advisory
• 2023-12-21 - Advisory Updated