CVE-2024-27804 is a vulnerability identified in Apple iOS and iPadOS that allows a malicious application to cause unexpected system termination, effectively crashing the device. The root cause is improper memory handling, classified under CWE-1325, which can lead to memory corruption or mismanagement. This vulnerability affects multiple Apple operating systems, including iOS, iPadOS, macOS Sonoma, tvOS, visionOS, and watchOS, with patches released in version 17.5 for iOS and iPadOS. The CVSS v3.1 score is 8.1, indicating high severity, with an attack vector of local (AV:L), high attack complexity (AC:H), no privileges required (PR:N), no user interaction (UI:N), and a scope change (S:C). The impact includes high confidentiality, integrity, and availability consequences, as the system termination can disrupt normal operations and potentially expose sensitive data or interrupt critical services. Exploitation requires an attacker to run a malicious app locally, but no authentication or user interaction is needed, increasing the risk in environments where untrusted apps can be installed. Although no exploits are currently known in the wild, the vulnerability's nature makes it a significant threat to device stability and security. The fix involves improved memory handling implemented in the latest OS updates, emphasizing the importance of timely patching.

The primary impact of CVE-2024-27804 is the potential for denial-of-service (DoS) through unexpected system termination on affected Apple devices. This can disrupt business operations, especially in environments relying heavily on iOS and iPadOS devices for communication, data access, and critical applications. The vulnerability also poses risks to confidentiality and integrity, as memory handling issues can sometimes be leveraged for data leakage or privilege escalation, though this specific exploit focuses on system termination. Organizations with mobile device management (MDM) policies may face operational challenges if devices crash unexpectedly, leading to productivity loss and increased support costs. In sectors such as finance, healthcare, and government, where Apple devices are prevalent, this vulnerability could be exploited to disrupt services or cause data unavailability. The high attack complexity and local attack vector limit remote exploitation but do not eliminate risk in environments where users can install untrusted apps or where insider threats exist. The absence of known exploits in the wild reduces immediate risk but does not preclude future exploitation attempts.

To mitigate CVE-2024-27804, organizations should prioritize updating all affected Apple devices to iOS 17.5, iPadOS 17.5, or later versions that include the patch. Enforce strict application installation policies by using Apple’s App Store exclusively or trusted enterprise app distribution methods to prevent installation of malicious apps. Employ Mobile Device Management (MDM) solutions to monitor device compliance and restrict app permissions that could trigger the vulnerability. Conduct regular security awareness training to educate users about the risks of installing untrusted applications. Additionally, implement runtime protections such as sandboxing and memory protection features inherent in Apple’s OS to reduce exploitation likelihood. For high-security environments, consider restricting local device access and monitoring for abnormal app behavior or system crashes indicative of exploitation attempts. Maintain an inventory of Apple devices and ensure timely patch management processes are in place to rapidly deploy security updates.