CVE-2020-11260 in Snapdragon Compute
Summary
by MITRE • 06/09/2021
An improper free of uninitialized memory can occur in DIAG services in Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile
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Analysis
by VulDB Data Team • 06/11/2021
The vulnerability identified as CVE-2020-11260 represents a critical memory management flaw within the diagnostic services of Qualcomm's Snapdragon product lines. This issue manifests as an improper free of uninitialized memory, which occurs when the system attempts to release memory that has not been properly initialized or allocated. The vulnerability affects multiple Snapdragon product categories including compute platforms, industrial internet of things devices, and mobile processors, indicating a widespread impact across Qualcomm's hardware ecosystem. The diagnostic services in question are typically used for system monitoring, debugging, and maintenance operations, making this vulnerability particularly concerning for security and system stability.
The technical root cause of this vulnerability stems from improper memory handling within the diagnostic subsystem where the system frees memory addresses that may contain uninitialized data or have not been properly allocated through standard memory management routines. This flaw creates a potential for memory corruption that can lead to unpredictable system behavior, application crashes, or even privilege escalation opportunities. The uninitialized memory condition occurs when memory is deallocated without proper validation of its contents, potentially allowing attackers to manipulate memory pointers or corrupt system structures. This type of vulnerability is classified under CWE-415 as an improper free of uninitialized memory, which represents a specific weakness in memory management practices that can be exploited to compromise system integrity.
The operational impact of CVE-2020-11260 extends beyond simple system instability to encompass potential security compromise scenarios. When diagnostic services are compromised, attackers may gain unauthorized access to sensitive system information or manipulate diagnostic functionalities to hide malicious activities. The vulnerability affects devices that rely on Qualcomm's Snapdragon processors for core operations, including smartphones, tablets, automotive systems, industrial IoT devices, and mobile computing platforms. Attackers could potentially exploit this weakness to execute arbitrary code or cause denial of service conditions, particularly when the diagnostic services are accessible to unprivileged users or when they operate with elevated privileges. The ATT&CK framework categorizes this type of vulnerability under privilege escalation and denial of service tactics, as it can be leveraged to gain higher system privileges or disrupt normal device operations.
Mitigation strategies for this vulnerability require immediate patching of affected Snapdragon device firmware and software components. Organizations should prioritize updating all affected devices to the latest firmware versions provided by Qualcomm, as these updates typically include memory management fixes and improved validation routines for diagnostic services. System administrators should also implement monitoring for unusual diagnostic service behavior or memory allocation patterns that could indicate exploitation attempts. Additional protective measures include restricting access to diagnostic services, implementing proper memory validation checks, and conducting regular security assessments of embedded systems. The vulnerability highlights the importance of proper memory management practices in embedded systems and underscores the need for comprehensive security testing of diagnostic and maintenance functionalities. Organizations should also consider implementing network segmentation and access controls to limit exposure of vulnerable diagnostic services to potential attackers.