CVE-2026-34549 iccDEV未定义行为漏洞

// PoC: Conceptual code demonstrating undefined behavior via invalid left shift // This mimics the issue found in IccUtil.cpp #include <iostream> #include <stdint.h> void trigger_vulnerability() { uint32_t value = 1; // Shifting by 32 or more bits on a 32-bit integer is Undefined Behavior in C++ // This simulates the crafted input scenario int shift_amount = 32; if (shift_amount >= 32) { // In the vulnerable version, this check might be missing or flawed std::cout << "Attempting invalid shift..." << std::endl; uint32_t result = value << shift_amount; // UB triggered here std::cout << "Result: " << result << std::endl; } } int main() { trigger_vulnerability(); return 0; }