CVE-2024-23248 is a vulnerability identified in Apple macOS that stems from improper memory handling during the processing of certain files. This flaw can be triggered when a user opens or processes a specially crafted file, leading to either a denial-of-service (DoS) condition or the potential disclosure of sensitive memory contents. The underlying issue relates to CWE-404, which involves improper resource shutdown or release, indicating that the system fails to correctly manage memory resources during file processing. The vulnerability requires no privileges (AV:N/PR:N), but user interaction (UI:R) is necessary to exploit it, such as opening or previewing a malicious file. The scope is unchanged (S:U), meaning the impact is limited to the vulnerable component without affecting other system components. The CVSS v3.1 base score is 6.5, reflecting a medium severity primarily due to the high impact on availability (denial-of-service) and potential confidentiality breach (memory disclosure), balanced against the requirement for user interaction and lack of privilege escalation. Apple addressed this vulnerability in macOS Sonoma 14.4 by improving memory handling routines to prevent improper resource release. No specific affected versions are detailed, but it applies to macOS versions prior to 14.4. There are no known active exploits in the wild, but the vulnerability's nature suggests it could be leveraged in targeted attacks or phishing campaigns involving malicious files. The absence of patch links in the provided data suggests users should rely on official Apple updates and advisories for remediation.

For European organizations, this vulnerability poses a risk primarily to availability and confidentiality on macOS devices. A successful exploit can cause system crashes or application failures, disrupting business operations, especially in environments relying on Apple hardware for critical workflows. The potential memory disclosure could expose sensitive information residing in memory, such as credentials or proprietary data, increasing the risk of further compromise. Sectors with high macOS usage, including creative industries, finance, and government agencies, may face operational interruptions or data leakage. Since exploitation requires user interaction, phishing or social engineering could be vectors, emphasizing the risk in organizations with less mature security awareness. The lack of privilege requirements means any user can trigger the vulnerability, potentially affecting shared or multi-user systems. Although no active exploits are known, the medium severity and impact on confidentiality and availability warrant prompt attention to prevent exploitation. The vulnerability could also affect macOS-based endpoints in hybrid or remote work environments, complicating incident response and containment.

European organizations should prioritize upgrading all macOS devices to version Sonoma 14.4 or later, where the vulnerability is fixed. Until updates are applied, restrict the processing of files from untrusted or unknown sources, particularly those received via email or downloaded from the internet. Implement robust endpoint protection solutions capable of detecting and blocking malicious files or anomalous application behavior. Enhance user awareness training to recognize phishing attempts and avoid opening suspicious attachments or links. Employ application whitelisting or sandboxing to limit the impact of malicious files. Monitor system logs and crash reports for unusual activity indicative of exploitation attempts. For environments with sensitive data, consider disabling automatic file previews or downloads in mail clients and browsers. Maintain an inventory of macOS devices to ensure comprehensive patch management. Coordinate with Apple support channels for any additional guidance or emergency patches. Finally, integrate this vulnerability into incident response plans to enable rapid containment if exploitation is detected.