CVE-2023-42053: 
PDF-XChange Editor vulnerability analysis and mitigation

PDF-XChange Editor contains an out-of-bounds read information disclosure vulnerability in its U3D file parsing functionality. The vulnerability (CVE-2023-42053) was discovered and reported through the Zero Day Initiative (ZDI-CAN-20926). User interaction is required to exploit this vulnerability, as the target must visit a malicious page or open a malicious file. The vulnerability stems from improper validation of user-supplied data when parsing U3D files (Zero Day Initiative).

The vulnerability exists within the parsing of U3D files, where the lack of proper validation of user-supplied data can result in a read past the end of an allocated object. The issue has been assigned a CVSS v3.0 base score of 3.3 (LOW) with the vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N (Zero Day Initiative).

This vulnerability allows attackers to disclose sensitive information on affected installations of PDF-XChange Editor. The impact is limited to information disclosure, with no direct impact on system integrity or availability. However, an attacker can potentially leverage this vulnerability in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process (Zero Day Initiative).

PDF-XChange has issued an update to correct this vulnerability. Users are advised to update to the latest version of the software to protect against this vulnerability (Zero Day Initiative, Tracker Software).