Advisory Details

August 17th, 2023

PDF-XChange Editor PDF File Parsing Uninitialized Variable Information Disclosure Vulnerability

CVE ID	CVE-2023-39484
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 PDF files. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.
ADDITIONAL DETAILS	Fixed in PDF-XChange Editor V9 (9.5.368) and V10 (10.0.1) https://www.tracker-software.com/product/pdf-xchange-editor/history
DISCLOSURE TIMELINE	2022-08-23 - Vulnerability reported to vendor 2023-08-17 - Coordinated public release of advisory
CREDIT	Mat Powell of Trend Micro Zero Day Initiative

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