CVE-2024-30364 is a security vulnerability classified as CWE-125 (Out-of-bounds Read) found in Foxit PDF Reader version 2023.3.0.23028. The flaw exists in the parsing logic for U3D (Universal 3D) files embedded within PDFs. Specifically, the vulnerability arises from insufficient validation of user-supplied data during U3D file parsing, which allows an attacker to read memory beyond the bounds of allocated buffers. This out-of-bounds read can lead to the disclosure of sensitive information from the process memory space. Although the vulnerability itself does not directly allow code execution, it can be leveraged in combination with other vulnerabilities to execute arbitrary code within the context of the Foxit PDF Reader process. Exploitation requires user interaction, such as opening a crafted malicious PDF or visiting a malicious webpage that triggers the vulnerable parsing routine. The vulnerability was assigned CVE-2024-30364 and was published on April 2, 2024. The CVSS v3.0 base score is 3.3, reflecting low severity due to the limited impact (confidentiality only), local attack vector requiring user interaction, and no privileges required. There are no known public exploits or patches currently available. The vulnerability was reported by the Zero Day Initiative (ZDI) as ZDI-CAN-23009. Given the nature of the flaw, attackers could potentially use it as part of a multi-stage attack chain to escalate privileges or execute arbitrary code, increasing its risk profile in targeted attacks.

The primary impact of CVE-2024-30364 is information disclosure, where an attacker can read memory beyond intended boundaries, potentially exposing sensitive data such as cryptographic keys, passwords, or other confidential information residing in the process memory of Foxit PDF Reader. While the direct impact is limited to confidentiality, the vulnerability's ability to be chained with other exploits raises the risk of arbitrary code execution, which could lead to full system compromise. Organizations relying on Foxit PDF Reader 2023.3.0.23028, especially those handling sensitive documents or operating in high-risk environments, face increased risk of data leakage and targeted attacks. The requirement for user interaction reduces the likelihood of widespread automated exploitation but does not eliminate risk, particularly in spear-phishing or targeted social engineering campaigns. The absence of known exploits in the wild currently limits immediate threat but vigilance is necessary as attackers may develop exploits. Overall, the vulnerability could undermine trust in document security and expose organizations to data breaches or further compromise if combined with other vulnerabilities.

1. Upgrade Foxit PDF Reader to the latest version once a patch addressing CVE-2024-30364 is released by the vendor. 2. Until a patch is available, restrict or disable the opening of PDF files containing U3D content, especially from untrusted or unknown sources. 3. Implement strict email filtering and endpoint security controls to detect and block malicious PDFs or links that may trigger the vulnerability. 4. Educate users about the risks of opening unsolicited or suspicious PDF attachments and visiting untrusted websites. 5. Employ application whitelisting or sandboxing techniques to isolate PDF reader processes and limit the impact of potential exploitation. 6. Monitor network and endpoint logs for unusual behavior indicative of exploitation attempts or memory disclosure activities. 7. Consider disabling or limiting the use of features related to 3D content rendering in PDF readers if not required by business processes. 8. Maintain up-to-date backups and incident response plans to quickly recover from potential compromise scenarios involving chained exploits.