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$NetBSD: patch-src_libjasper_jpc_jpc__cs.c,v 1.1 2015/01/01 14:15:27 he Exp $
Add fixes for CVE-2011-4516 and CVE-2011-4517.
--- src/libjasper/jpc/jpc_cs.c.orig 2007-01-19 21:43:07.000000000 +0000
+++ src/libjasper/jpc/jpc_cs.c
@@ -744,6 +744,10 @@ static int jpc_cox_getcompparms(jpc_ms_t
return -1;
}
compparms->numrlvls = compparms->numdlvls + 1;
+ if (compparms->numrlvls > JPC_MAXRLVLS) {
+ jpc_cox_destroycompparms(compparms);
+ return -1;
+ }
if (prtflag) {
for (i = 0; i < compparms->numrlvls; ++i) {
if (jpc_getuint8(in, &tmp)) {
@@ -982,7 +986,10 @@ static int jpc_qcx_getcompparms(jpc_qcxc
compparms->numstepsizes = (len - n) / 2;
break;
}
- if (compparms->numstepsizes > 0) {
+ if (compparms->numstepsizes > 3 * JPC_MAXRLVLS + 1) {
+ jpc_qcx_destroycompparms(compparms);
+ return -1;
+ } else if (compparms->numstepsizes > 0) {
compparms->stepsizes = jas_malloc(compparms->numstepsizes *
sizeof(uint_fast16_t));
assert(compparms->stepsizes);
@@ -1328,7 +1335,7 @@ static int jpc_crg_getparms(jpc_ms_t *ms
jpc_crgcomp_t *comp;
uint_fast16_t compno;
crg->numcomps = cstate->numcomps;
- if (!(crg->comps = jas_malloc(cstate->numcomps * sizeof(uint_fast16_t)))) {
+ if (!(crg->comps = jas_malloc(cstate->numcomps * sizeof(jpc_crgcomp_t)))) {
return -1;
}
for (compno = 0, comp = crg->comps; compno < cstate->numcomps;
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