CVE-2024-58114 is a resource allocation control failure vulnerability identified in Huawei's HarmonyOS, specifically within the ArkUI framework. This vulnerability is classified under CWE-770, which pertains to the allocation of resources without proper limits or throttling mechanisms. In practical terms, the flaw allows an attacker to trigger excessive resource consumption, potentially leading to denial of service (DoS) conditions by exhausting system resources such as memory, CPU, or other critical components. The vulnerability affects HarmonyOS version 5.0.0. The CVSS 3.1 base score is 4.0, indicating a medium severity level, with the vector AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L. This means the attack requires local access (AV:L), low attack complexity (AC:L), no privileges (PR:N), and no user interaction (UI:N). The impact is limited to availability, with no confidentiality or integrity compromise. No known exploits are currently reported in the wild, and no patches have been linked yet. The vulnerability's root cause is the lack of proper resource allocation limits or throttling in the ArkUI framework, which can be exploited to degrade system performance or cause crashes by overwhelming the system with resource requests.

For European organizations, the primary impact of CVE-2024-58114 is the potential disruption of services running on devices powered by Huawei HarmonyOS 5.0.0. This is particularly relevant for enterprises or public sector entities that utilize HarmonyOS-based devices in critical operational roles, such as IoT deployments, smart devices, or mobile endpoints. An attacker with local access could exploit this vulnerability to cause denial of service, leading to reduced availability of affected devices or applications. This could interrupt business processes, degrade user experience, or in worst cases, cause cascading failures in interconnected systems. Although the vulnerability does not compromise data confidentiality or integrity, availability issues can still have significant operational and reputational consequences. Given the local access requirement, the threat is more pronounced in environments where devices are accessible to untrusted users or where insider threats exist. The lack of known exploits reduces immediate risk, but organizations should remain vigilant as exploit development could occur.

To mitigate CVE-2024-58114, European organizations should implement the following specific measures: 1) Limit physical and local access to HarmonyOS devices, especially in sensitive environments, to reduce the risk of local exploitation. 2) Monitor resource usage on HarmonyOS devices for abnormal spikes that could indicate exploitation attempts. 3) Employ application whitelisting and restrict installation of untrusted applications that might trigger resource exhaustion. 4) Engage with Huawei or authorized vendors to obtain patches or updates addressing this vulnerability as soon as they become available. 5) For critical deployments, consider network segmentation to isolate HarmonyOS devices and limit potential attack vectors. 6) Conduct regular security audits and penetration testing focusing on resource management and denial of service scenarios on HarmonyOS devices. 7) Educate users and administrators about the risks of local exploitation and enforce strict device usage policies. These steps go beyond generic advice by focusing on access control, monitoring, vendor engagement, and operational security tailored to the nature of this vulnerability.