[jackhill/guix/guix.git] / gnu / packages / patches / jasper-CVE-2014-8138.patch

Fix CVE-2014-8138 (heap overflow in jp2_decode()).

Copied from Fedora.

http://pkgs.fedoraproject.org/cgit/rpms/jasper.git/tree/jasper-CVE-2014-8138.patch
https://bugzilla.redhat.com/show_bug.cgi?id=1173162

--- jasper-1.900.1.orig/src/libjasper/jp2/jp2_dec.c	2014-12-11 14:06:44.000000000 +0100
+++ jasper-1.900.1/src/libjasper/jp2/jp2_dec.c	2014-12-11 14:06:26.000000000 +0100
@@ -386,6 +386,11 @@ jas_image_t *jp2_decode(jas_stream_t *in
 	/* Determine the type of each component. */
 	if (dec->cdef) {
 		for (i = 0; i < dec->numchans; ++i) {
+			/* Is the channel number reasonable? */
+			if (dec->cdef->data.cdef.ents[i].channo >= dec->numchans) {
+				jas_eprintf("error: invalid channel number in CDEF box\n");
+				goto error;
+			}
 			jas_image_setcmpttype(dec->image,
 			  dec->chantocmptlut[dec->cdef->data.cdef.ents[i].channo],
 			  jp2_getct(jas_image_clrspc(dec->image),
Commit	Line	Data
90bcecc5 LF	1	Fix CVE-2014-8138 (heap overflow in jp2_decode()).
	2
	3	Copied from Fedora.
	4
	5	http://pkgs.fedoraproject.org/cgit/rpms/jasper.git/tree/jasper-CVE-2014-8138.patch
	6	https://bugzilla.redhat.com/show_bug.cgi?id=1173162
	7
	8	--- jasper-1.900.1.orig/src/libjasper/jp2/jp2_dec.c 2014-12-11 14:06:44.000000000 +0100
	9	+++ jasper-1.900.1/src/libjasper/jp2/jp2_dec.c 2014-12-11 14:06:26.000000000 +0100
	10	@@ -386,6 +386,11 @@ jas_image_t jp2_decode(jas_stream_t in
	11	/* Determine the type of each component. */
	12	if (dec->cdef) {
	13	for (i = 0; i < dec->numchans; ++i) {
	14	+ /* Is the channel number reasonable? */
	15	+ if (dec->cdef->data.cdef.ents[i].channo >= dec->numchans) {
	16	+ jas_eprintf("error: invalid channel number in CDEF box\n");
	17	+ goto error;
	18	+ }
	19	jas_image_setcmpttype(dec->image,
	20	dec->chantocmptlut[dec->cdef->data.cdef.ents[i].channo],
	21	jp2_getct(jas_image_clrspc(dec->image),