CVE-2020-1806 in Honor V10
Summary
by MITRE
Huawei Honor V10 smartphones with versions earlier than 10.0.0.156(C00E156R2P4) has three out of bounds vulnerabilities. Certain driver program does not sufficiently validate certain parameters received, that would lead to several bytes out of bound read. Successful exploit may cause information disclosure or service abnormal. This is 3 out of 3 out of bounds vulnerabilities found. Different than CVE-2020-1804 and CVE-2020-1805.
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Analysis
by VulDB Data Team • 05/06/2025
The vulnerability identified as CVE-2020-1806 affects Huawei Honor V10 smartphones running firmware versions prior to 10.0.0.156(C00E156R2P4) and represents a critical security flaw in the device's driver programs. This vulnerability manifests as three distinct out-of-bounds read conditions that occur when certain driver components fail to adequately validate input parameters received from various system interfaces. The flaw resides in the kernel-level driver programs responsible for handling device operations and communication protocols, creating a pathway for malicious actors to exploit memory access violations. These vulnerabilities specifically impact the device's ability to properly sanitize and validate data inputs before processing them within memory boundaries, leading to potential information disclosure and system instability.
The technical implementation of this vulnerability stems from insufficient parameter validation within the affected driver modules, which allows attackers to craft malicious inputs that exceed the allocated memory boundaries. When these malformed inputs are processed by the vulnerable driver components, the system attempts to read memory locations beyond the intended buffer limits, resulting in out-of-bounds memory access patterns. This behavior creates opportunities for adversaries to extract sensitive information from adjacent memory regions, potentially exposing confidential data such as cryptographic keys, user credentials, or system configuration details. The out-of-bounds read conditions can also trigger system crashes or abnormal service behavior, leading to denial of service scenarios that compromise the overall device functionality and user experience.
From an operational perspective, successful exploitation of CVE-2020-1806 presents significant risks to Huawei Honor V10 users and their data security. The information disclosure aspect of this vulnerability could enable attackers to access sensitive system information that might be leveraged for further exploitation attempts, potentially leading to privilege escalation or lateral movement within affected networks. The service abnormality component creates reliability issues that could affect device performance and availability, particularly in enterprise environments where consistent device operation is critical. These vulnerabilities are particularly concerning given that they affect a widely deployed smartphone model, potentially exposing thousands of devices to similar security risks across different geographic regions and user bases.
The vulnerability aligns with CWE-125, which describes out-of-bounds read conditions in software implementations, and represents a classic example of improper input validation leading to memory safety issues. From an ATT&CK framework perspective, this vulnerability could be categorized under initial access and privilege escalation techniques, as it provides a potential entry point for attackers seeking to gain unauthorized access to device resources and information. The exploitation of these out-of-bounds conditions typically requires minimal privileges and can be executed through carefully crafted inputs or system interactions that trigger the vulnerable driver code paths. Organizations and users should prioritize immediate firmware updates to address these vulnerabilities, as the affected devices remain exposed to potential exploitation attempts. The three distinct out-of-bounds conditions within this single vulnerability highlight the complexity of the underlying driver implementation and the importance of comprehensive security testing for kernel-level components in mobile operating systems.