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22 lines
891 B
Diff
22 lines
891 B
Diff
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Fix CVE-2014-8138 (heap overflow in jp2_decode()).
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Copied from Fedora.
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http://pkgs.fedoraproject.org/cgit/rpms/jasper.git/tree/jasper-CVE-2014-8138.patch
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https://bugzilla.redhat.com/show_bug.cgi?id=1173162
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--- jasper-1.900.1.orig/src/libjasper/jp2/jp2_dec.c 2014-12-11 14:06:44.000000000 +0100
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+++ jasper-1.900.1/src/libjasper/jp2/jp2_dec.c 2014-12-11 14:06:26.000000000 +0100
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@@ -386,6 +386,11 @@ jas_image_t *jp2_decode(jas_stream_t *in
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/* Determine the type of each component. */
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if (dec->cdef) {
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for (i = 0; i < dec->numchans; ++i) {
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+ /* Is the channel number reasonable? */
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+ if (dec->cdef->data.cdef.ents[i].channo >= dec->numchans) {
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+ jas_eprintf("error: invalid channel number in CDEF box\n");
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+ goto error;
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+ }
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jas_image_setcmpttype(dec->image,
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dec->chantocmptlut[dec->cdef->data.cdef.ents[i].channo],
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jp2_getct(jas_image_clrspc(dec->image),
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