Improper Restriction of Operations within the Bounds of a Memory Buffer
The Near Field Communication (NFC) module in Huawei Mate 9 Pro mobile phones with the versions before LON-AL00B 22.214.171.1240a(C00) has a buffer overflow vulnerability due to the lack of input validation. An attacker may use an NFC card reader or another device to inject malicious data into a target mobile phone. Successful exploit could lead to system restart or arbitrary code execution.
CWE-119 - Buffer Overflow
Buffer overflow attacks involve data transit and operations exceeding the restricted memory buffer, thereby corrupting or overwriting data in adjacent memory locations. Such overflow allows the attacker to run arbitrary code or manipulate the existing code to cause privilege escalation, data breach, denial of service, system crash and even complete system compromise. Given that languages such as C and C++ lack default safeguards against overwriting or accessing data in their memory, applications utilizing these languages are most susceptible to buffer overflows attacks.