CVE-2020-1804 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 1 out of 3 out of bounds vulnerabilities found. Different than CVE-2020-1805 and CVE-2020-1806.
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Analysis
by VulDB Data Team • 05/06/2025
The vulnerability identified as CVE-2020-1804 affects Huawei Honor V10 smartphones running firmware versions prior to 10.0.0.156(C00E156R2P4) and represents a critical out-of-bounds read flaw within the device's driver programs. This vulnerability falls under the broader category of memory safety issues that can compromise system integrity and data confidentiality. The affected device operates on a mobile platform where driver programs handle low-level hardware interactions, making them prime targets for exploitation due to their privileged execution context and direct access to system resources. The vulnerability specifically manifests when certain driver components fail to properly validate input parameters received from user-space applications or system services, creating opportunities for attackers to manipulate memory access patterns beyond intended boundaries.
The technical implementation of this vulnerability involves improper parameter validation within kernel-level driver code that processes data from various system interfaces. When legitimate input parameters are not adequately checked for bounds or validity, malicious actors can craft specially crafted inputs that cause the driver to read memory locations outside the allocated buffer boundaries. This out-of-bounds read behavior can potentially expose sensitive information from adjacent memory regions including kernel memory, system credentials, or other confidential data structures. The flaw demonstrates characteristics consistent with CWE-129, which addresses insufficient validation of length of input buffers, and aligns with ATT&CK technique T1059.001 for command and scripting interpreter execution. The vulnerability's impact extends beyond simple information disclosure as it can also lead to service abnormality, indicating potential system instability or denial of service conditions that could be exploited for more sophisticated attacks.
The operational impact of CVE-2020-1804 poses significant risks to users of affected Huawei Honor V10 devices, particularly in environments where mobile security is paramount. Attackers exploiting this vulnerability could potentially access sensitive system information, including cryptographic keys, user credentials, or other confidential data stored in memory. The out-of-bounds read condition creates opportunities for information disclosure that could be leveraged in subsequent attack phases, such as privilege escalation or lateral movement within compromised systems. The vulnerability's classification as a driver-level flaw means that exploitation could occur without requiring user interaction, making it particularly dangerous as it could be triggered through normal device operations or malicious applications. The fact that this is one of three related vulnerabilities (CVE-2020-1805 and CVE-2020-1806) suggests a systemic issue within the device's driver architecture, indicating potential widespread impact across similar hardware platforms. Organizations and individuals should consider this vulnerability as part of a broader security landscape where mobile device security is increasingly critical, especially in enterprise environments where mobile devices serve as primary access points to corporate networks and sensitive data repositories.
The mitigation strategy for CVE-2020-1804 requires immediate firmware updates from Huawei to address the driver validation issues. Users should ensure their devices are updated to firmware version 10.0.0.156(C00E156R2P4) or later, which contains the necessary patches to prevent the out-of-bounds read conditions. Network administrators should implement monitoring for suspicious device behavior and consider temporary network restrictions for affected devices until updates are confirmed. The vulnerability's nature as a driver-level flaw means that traditional application-level security measures may be insufficient, requiring system-level patches and potentially full device reinstallation to ensure complete remediation. Security teams should also monitor for any attempts to exploit this vulnerability in the wild, as the combination of information disclosure and service abnormality capabilities makes it attractive to threat actors seeking to compromise mobile device security. The vulnerability's classification under memory safety standards emphasizes the importance of robust input validation and boundary checking in all system components, particularly those operating in privileged contexts where failure can result in complete system compromise.