File jasper-CVE-2016-9395.patch of Package jasper.4397
--- jasper-1.900.14/src/libjasper/jpc/jpc_cs.c 2016-10-26 08:57:31.000000000 +0200
+++ jasper-1.900.14/src/libjasper/jpc/jpc_cs.c 2016-12-13 10:49:36.673944174 +0100
@@ -489,6 +489,8 @@
unsigned int i;
uint_fast8_t tmp;
+ siz->comps = 0;
+
/* Eliminate compiler warning about unused variables. */
cstate = 0;
@@ -502,44 +504,67 @@
jpc_getuint32(in, &siz->tilexoff) ||
jpc_getuint32(in, &siz->tileyoff) ||
jpc_getuint16(in, &siz->numcomps)) {
- return -1;
+ goto error;
}
- if (!siz->width || !siz->height || !siz->tilewidth ||
- !siz->tileheight || !siz->numcomps || siz->numcomps > 16384) {
- return -1;
- }
- if (siz->tilexoff >= siz->width || siz->tileyoff >= siz->height) {
- jas_eprintf("all tiles are outside the image area\n");
- return -1;
+ if (!siz->width || !siz->height) {
+ jas_eprintf("reference grid cannot have zero area\n");
+ goto error;
+ }
+ if (!siz->tilewidth || !siz->tileheight) {
+ jas_eprintf("tile cannot have zero area\n");
+ goto error;
+ }
+ if (!siz->numcomps || siz->numcomps > 16384) {
+ jas_eprintf("number of components not in permissible range\n");
+ goto error;
+ }
+ if (siz->xoff >= siz->width) {
+ jas_eprintf("XOsiz not in permissible range\n");
+ goto error;
+ }
+ if (siz->yoff >= siz->height) {
+ jas_eprintf("YOsiz not in permissible range\n");
+ goto error;
+ }
+ if (siz->tilexoff > siz->xoff || siz->tilexoff + siz->tilewidth <= siz->xoff) {
+ jas_eprintf("XTOsiz not in permissible range\n");
+ goto error;
+ }
+ if (siz->tileyoff > siz->yoff || siz->tileyoff + siz->tileheight <= siz->yoff) {
+ jas_eprintf("YTOsiz not in permissible range\n");
+ goto error;
}
+
if (!(siz->comps = jas_alloc2(siz->numcomps, sizeof(jpc_sizcomp_t)))) {
- return -1;
+ goto error;
}
for (i = 0; i < siz->numcomps; ++i) {
if (jpc_getuint8(in, &tmp) ||
jpc_getuint8(in, &siz->comps[i].hsamp) ||
jpc_getuint8(in, &siz->comps[i].vsamp)) {
- jas_free(siz->comps);
- return -1;
+ goto error;
}
if (siz->comps[i].hsamp == 0 || siz->comps[i].hsamp > 255) {
jas_eprintf("invalid XRsiz value %d\n", siz->comps[i].hsamp);
- jas_free(siz->comps);
- return -1;
+ goto error;
}
if (siz->comps[i].vsamp == 0 || siz->comps[i].vsamp > 255) {
jas_eprintf("invalid YRsiz value %d\n", siz->comps[i].vsamp);
- jas_free(siz->comps);
- return -1;
+ goto error;
}
siz->comps[i].sgnd = (tmp >> 7) & 1;
siz->comps[i].prec = (tmp & 0x7f) + 1;
}
if (jas_stream_eof(in)) {
- jas_free(siz->comps);
- return -1;
+ goto error;
}
return 0;
+
+error:
+ if (siz->comps) {
+ jas_free(siz->comps);
+ }
+ return -1;
}
static int jpc_siz_putparms(jpc_ms_t *ms, jpc_cstate_t *cstate, jas_stream_t *out)