30 lines
1.0 KiB
Diff
30 lines
1.0 KiB
Diff
From f94e7499a8b1471a4905c4f9c9e12e60fe88264b Mon Sep 17 00:00:00 2001
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From: Michael Adams <mdadams@ece.uvic.ca>
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Date: Sat, 13 Mar 2021 20:04:58 -0800
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Subject: [PATCH] Fixes #269. Added a check for an invalid component reference
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in the JP2 decoder.
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---
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src/libjasper/jp2/jp2_dec.c | 8 +++++++-
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1 files changed, 7 insertions(+), 1 deletion(-)
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diff --git a/src/libjasper/jp2/jp2_dec.c b/src/libjasper/jp2/jp2_dec.c
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index 2863d82..fe2e29d 100644
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--- a/src/libjasper/jp2/jp2_dec.c
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+++ b/src/libjasper/jp2/jp2_dec.c
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@@ -451,7 +451,13 @@ jas_image_t *jp2_decode(jas_stream_t *in, const char *optstr)
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}
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} else {
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for (i = 0; i < dec->numchans; ++i) {
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- jas_image_setcmpttype(dec->image, dec->chantocmptlut[i],
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+ unsigned compno = dec->chantocmptlut[i];
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+ if (compno >= jas_image_numcmpts(dec->image)) {
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+ jas_eprintf(
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+ "error: invalid component reference (%d)\n", compno);
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+ goto error;
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+ }
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+ jas_image_setcmpttype(dec->image, compno,
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jp2_getct(jas_image_clrspc(dec->image), 0, i + 1));
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}
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}
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