CVE-2024-8839

PDF-XChange Editor JB2 File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

CVE ID CVE-2024-8839

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 JB2 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.

ADDITIONAL DETAILS

Fixed in version 10.3.1.387 (https://www.pdf-xchange.com/index.php/support/security-bulletins.html)

DISCLOSURE TIMELINE

2024-06-13 - Vulnerability reported to vendor

2024-09-17 - Coordinated public release of advisory

2024-09-17 - Advisory Updated

CREDIT Rocco Calvi (@TecR0c) with TecSecurity