jasper/patch-libjasper-stepsizes-overflow.diff

   1 --- jasper-1.900.1.orig/src/libjasper/jpc/jpc_cs.c      2007-01-19 22:43:07.000000000 +0100
   2 +++ jasper-1.900.1/src/libjasper/jpc/jpc_cs.c   2007-04-06 01:29:02.000000000 +0200
   3 @@ -982,7 +982,10 @@ static int jpc_qcx_getcompparms(jpc_qcxc
   4                 compparms->numstepsizes = (len - n) / 2;
   5                 break;
   6         }
   7 -       if (compparms->numstepsizes > 0) {
   8 +       if (compparms->numstepsizes > 3 * JPC_MAXRLVLS + 1) {
   9 +               jpc_qcx_destroycompparms(compparms);
  10 +                return -1;
  11 +        } else if (compparms->numstepsizes > 0) {
  12                 compparms->stepsizes = jas_malloc(compparms->numstepsizes *
  13                   sizeof(uint_fast16_t));
  14                 assert(compparms->stepsizes);