CVE-2024-23300 is a use-after-free vulnerability identified in Apple GarageBand, a popular digital audio workstation application. The flaw arises from improper memory management when processing certain crafted files, leading to the application referencing freed memory. This can cause unexpected termination (crashes) or, more critically, arbitrary code execution within the context of the affected application. The vulnerability is classified under CWE-416 (Use After Free). The CVSS v3.1 base score is 7.8, indicating high severity. The attack vector is local (AV:L), meaning the attacker must have local access to the system. No privileges are required (PR:N), but user interaction is necessary (UI:R) to open the malicious file. The scope is unchanged (S:U), but the impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H). Although no public exploits are known, the vulnerability poses a significant risk because an attacker could craft a file that, when opened by a user, executes arbitrary code, potentially leading to full system compromise or data theft. The issue was addressed by Apple in GarageBand version 10.4.11 through improved memory management to prevent use-after-free conditions.

For European organizations, especially those in media, entertainment, and creative sectors that rely on Apple GarageBand for audio production, this vulnerability presents a serious risk. Successful exploitation could lead to unauthorized code execution, allowing attackers to install malware, steal sensitive intellectual property, or disrupt operations by crashing the application or the host system. Given the local attack vector and requirement for user interaction, phishing or social engineering campaigns could be used to deliver malicious GarageBand project files. The impact extends beyond individual users to organizational networks if compromised devices are connected to corporate resources. Confidentiality breaches could expose proprietary audio content or business communications. Integrity attacks could alter audio projects or inject malicious payloads. Availability could be affected by application crashes or system instability. The absence of known exploits in the wild currently reduces immediate risk but does not eliminate the threat, especially as attackers often develop exploits after public disclosure.

European organizations should prioritize updating GarageBand to version 10.4.11 or later to ensure the vulnerability is patched. IT departments should implement strict controls on the exchange and opening of GarageBand project files, especially from untrusted or external sources. Employ endpoint protection solutions capable of detecting anomalous behavior related to file processing and application crashes. User awareness training should emphasize the risks of opening unsolicited or suspicious GarageBand files, highlighting the need for caution with email attachments or downloads. Network segmentation can limit the spread of potential compromise from affected devices. Additionally, organizations should monitor for unusual application terminations or system behaviors indicative of exploitation attempts. Where feasible, consider restricting GarageBand usage to trusted users or environments and enforce application whitelisting policies. Regular backups of critical project files should be maintained to mitigate data loss from crashes or attacks.