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qtdemux: Check length of JPEG2000 colr box before parsing it

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8930>
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Sebastian Dröge 2025-05-04 13:41:56 +03:00 committed by GStreamer Marge Bot
parent f18123ea15
commit 5c16c8f0c1
1 changed files with 4 additions and 0 deletions
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subprojects/gst-plugins-good/gst/isomp4/qtdemux.c
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@ -13936,6 +13936,7 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak, guint32 * mvhd_matrix)
const guint8 *data;
const gchar *colorspace = NULL;
gint ncomp = 0;
guint32 colr_len;
guint32 ncomp_map = 0;
gint32 *comp_map = NULL;
guint32 nchan_def = 0;
@ -13960,6 +13961,9 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak, guint32 * mvhd_matrix)
colr = qtdemux_tree_get_child_by_type (jp2h, FOURCC_colr);
if (!colr)
break;
colr_len = QT_UINT32 (colr->data);
if (colr_len < 15)
break;
GST_DEBUG_OBJECT (qtdemux, "found colr");
/* extract colour space info */
if (QT_UINT8 ((guint8 *) colr->data + 8) == 1) {