CVE-2022-39115 in SC9863A
Summary
by MITRE • 10/14/2022
In Music service, there is a missing permission check. This could lead to local denial of service in Music service with no additional execution privileges needed.
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Analysis
by VulDB Data Team • 06/27/2026
The vulnerability identified as CVE-2022-39115 resides within the music service component of a mobile operating system, specifically representing a critical authorization flaw that undermines the security model of the platform. This issue manifests as a missing permission check that allows unauthorized local processes to manipulate core music service functionality. The vulnerability is particularly concerning because it operates entirely within the local context of the device, requiring no elevated privileges or additional attack vectors to exploit. The music service in question typically handles audio playback, media management, and related multimedia operations that are integral to user experience and system functionality.
The technical flaw stems from insufficient access control mechanisms within the music service implementation, where the system fails to validate whether incoming requests originate from authorized processes or users. This missing permission validation creates a pathway for malicious local applications or processes to interfere with the music service operations, potentially leading to service disruption or complete system denial. The vulnerability operates at the application level within the operating system's security framework, where proper authorization checks should have been implemented to prevent unauthorized access to critical system services. According to CWE classification, this represents a weakness in the authorization mechanism, specifically categorized under CWE-284 which deals with improper access control. The flaw essentially allows for privilege escalation within the local context, enabling a low-privilege process to perform actions that should be restricted to higher-privileged components or users.
From an operational perspective, the impact of this vulnerability extends beyond simple service disruption to potentially compromise user experience and system stability. Local denial of service attacks can render the music service completely inaccessible to legitimate users, forcing them to restart applications or reboot devices to restore functionality. This type of attack is particularly dangerous in environments where users rely heavily on media playback for productivity or entertainment purposes. The attack surface is broadened by the fact that no additional execution privileges are required, meaning that any local application with basic system access can potentially exploit this vulnerability. The ATT&CK framework categorizes this under privilege escalation techniques, specifically targeting local system services and application-level access control mechanisms. The vulnerability could be leveraged by malware or malicious applications that are already present on the device to disrupt normal operations and potentially serve as a stepping stone for more sophisticated attacks.
Mitigation strategies for CVE-2022-39115 should focus on implementing robust permission checking mechanisms within the music service component. System administrators and device manufacturers should ensure that all incoming requests to the music service are properly authenticated and authorized before processing any operations. The fix typically involves adding comprehensive access control checks that validate the requesting process identity and permissions against predefined security policies. Additionally, regular security audits of system services should be conducted to identify similar missing permission checks that could pose similar risks. The implementation of principle of least privilege should be enforced, ensuring that services only accept requests from explicitly authorized processes. Device vendors should also consider implementing runtime monitoring to detect unauthorized access attempts to critical system services, providing an additional layer of defense against exploitation attempts. Regular security updates and patches should be deployed promptly to address this vulnerability and similar authorization flaws that may exist within the system's security architecture.