CVE-2020-28344 in LG
Summary
by MITRE • 11/08/2020
An issue was discovered on LG mobile devices with Android OS 8.0, 8.1, 9.0, and 10 software. System services may crash because of the lack of a NULL parameter check. The LG ID is LVE-SMP-200024 (November 2020).
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Analysis
by VulDB Data Team • 12/03/2020
This vulnerability affects LG mobile devices running Android versions 8.0, 8.1, 9.0, and 10, representing a critical security flaw in the system services layer of the operating system. The issue stems from insufficient input validation within the mobile device's software stack, specifically lacking proper NULL parameter checks that should be implemented to prevent system instability. The vulnerability was identified and tracked by LG under the internal identifier LVE-SMP-200024, with the disclosure occurring in November 2020, highlighting the importance of timely security patching in mobile ecosystems. This flaw represents a classic example of improper input validation that can lead to denial of service conditions within the device's core operational framework.
The technical nature of this vulnerability falls under the category of software quality assurance failures where essential defensive programming practices have been omitted from the system services implementation. When system services receive parameters that are unexpectedly NULL, the absence of proper validation causes the services to crash or become unresponsive, potentially leading to complete system instability. This type of vulnerability aligns with CWE-476, which specifically addresses NULL pointer dereference issues in software implementations, and demonstrates how seemingly minor oversights in code quality can result in significant operational impacts. The flaw operates at the system service level, meaning it affects core functionalities that manage device operations, communications, and user interactions, making it particularly concerning for mobile device security.
The operational impact of this vulnerability extends beyond simple service disruption to potentially compromise the overall user experience and device reliability. When system services crash due to missing NULL checks, users may encounter unexpected reboots, application failures, or complete device unresponsiveness, which can result in data loss or service interruptions. This type of denial of service condition can be particularly problematic in enterprise environments where mobile devices are critical for business operations, as it may lead to productivity losses and increased support costs. The vulnerability affects multiple Android versions simultaneously, indicating a widespread issue within LG's software development practices and suggesting that the root cause likely resides in shared code components or common service implementations across the affected platforms.
Organizations and users should prioritize immediate patching of affected devices to mitigate the risk of system instability and potential exploitation. The vulnerability represents a clear failure in defensive programming practices that should be addressed through comprehensive code reviews and implementation of proper input validation mechanisms. Security teams should monitor for any potential exploitation attempts that might leverage this vulnerability to escalate privileges or gain unauthorized access to device resources, as the underlying system service crashes could potentially be used as a stepping stone for more sophisticated attacks. The issue also underscores the importance of adhering to secure coding practices and following industry standards such as those outlined in the OWASP Top Ten and NIST cybersecurity guidelines for mobile application security.