Stack Overflow

Microcontroller Program Malfunction? 5 Common Causes and Troubleshooting Methods (with Practical Cases)

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Microcontroller Program Malfunction? 5 Common Causes and Troubleshooting Methods (with Practical Cases)

Hello everyone, today we will discuss a classic problem that causes countless engineers to lose their hair—microcontroller program malfunction. Just like a novice driver suddenly losing control of a car, when a program malfunctions, the microcontroller may suddenly freeze, restart, or execute strange actions. Last week, I encountered a funny case: the customer’s production line … Read more

Analysis of Stack Overflow Vulnerability in Netgear R8300

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Analysis of Stack Overflow Vulnerability in Netgear R8300

Vulnerability Description: There is a stack overflow vulnerability in the sub_25E04 function of the upnpd file. The length is not checked during strcpy, causing an overflow and allowing for a ROP attack to achieve command execution. Version: 1.0.2.134 Vulnerability Analysis and Reproduction1. Firmware Simulation Using qemu system simulation: qemu startup: qemu-system-arm -M vexpress-a9 -kernel vmlinuz-3.2.0-4-vexpress … Read more