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openjp2/j2k: Validate all SGcod/SPcod/SPcoc parameter values.
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Previously the multiple component transformation SGcod(C)
and wavelet transformation SPcod(H)/SPcoc(E) parameter
values were never checked, allowing for out of range values.

The lack of validation allowed the bit stream provided in
issue uclouvain#1158 through. After this commit an error message
points to the marker segments' parameters as being out of
range.

input/nonregression/edf_c2_20.jp2 contains an SPcod(H) value
of 17, but according to Table A-20 of the specification only
values 0 and 1 are valid. input/nonregression/issue826.jp2
contains a SGcod(B) value of 2, but according to Table A-17
of the specification only values 0 and 1 are valid.
input/nonregression/oss-fuzz2785.jp2` contains a SGcod(B)
value of 32, but it is likewise limited to 0 or 1. These test
cases have been updated to consistently fail to parse the
headers since they contain out of bounds values.

This fixes issue uclouvain#1210.
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sebras committed Sep 4, 2019
1 parent 1df6ae7 commit fc3a613
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Showing 2 changed files with 14 additions and 1 deletion.
11 changes: 11 additions & 0 deletions src/lib/openjp2/j2k.c
Original file line number Diff line number Diff line change
Expand Up @@ -2698,6 +2698,11 @@ static OPJ_BOOL opj_j2k_read_cod(opj_j2k_t *p_j2k,
opj_read_bytes(p_header_data, &l_tcp->mct, 1); /* SGcod (C) */
++p_header_data;

if (l_tcp->mct > 1) {
opj_event_msg(p_manager, EVT_ERROR, "Invalid multiple component transformation\n");
return OPJ_FALSE;
}

p_header_size -= 5;
for (i = 0; i < l_image->numcomps; ++i) {
l_tcp->tccps[i].csty = l_tcp->csty & J2K_CCP_CSTY_PRT;
Expand Down Expand Up @@ -9787,6 +9792,12 @@ static OPJ_BOOL opj_j2k_read_SPCod_SPCoc(opj_j2k_t *p_j2k,
opj_read_bytes(l_current_ptr, &l_tccp->qmfbid, 1); /* SPcod (H) / SPcoc (E) */
++l_current_ptr;

if (l_tccp->qmfbid > 1) {
opj_event_msg(p_manager, EVT_ERROR,
"Error reading SPCod SPCoc element, Invalid transformation found\n");
return OPJ_FALSE;
}

*p_header_size = *p_header_size - 5;

/* use custom precinct size ? */
Expand Down
4 changes: 3 additions & 1 deletion tests/nonregression/CMakeLists.txt
Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,6 @@ set(BLACKLIST_JPEG2000_TMP
edf_c2_1178956.jp2
edf_c2_1000290.jp2
#edf_c2_1000691.jp2 # ok
#edf_c2_20.jp2 #looks ok as per kdu_jp2info
edf_c2_1377017.jp2
edf_c2_1002767.jp2
edf_c2_10025.jp2
Expand All @@ -61,6 +60,7 @@ set(BLACKLIST_JPEG2000
broken2.jp2
broken3.jp2
broken4.jp2
edf_c2_20.jp2 #may look ok as per kdu_jp2info, but inspection it reveals that the transformation value is out of range
gdal_fuzzer_assert_in_opj_j2k_read_SQcd_SQcc.patch.jp2
gdal_fuzzer_check_comp_dx_dy.jp2
gdal_fuzzer_check_number_of_tiles.jp2
Expand All @@ -82,6 +82,8 @@ set(BLACKLIST_JPEG2000
issue475.jp2 #kdu_jp2info ok
issue413.jp2 #kdu_jp2info ok
issue823.jp2 #kdu_jp2info ok
issue826.jp2 #inspection reveales that the transformation value is out of range
oss-fuzz2785.jp2 #inspection reveales that the transformation value is out of range
)

file(GLOB_RECURSE OPJ_DATA_NR_LIST
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