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Integer Overflow at j2k.c:11114 #1491

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Dec 8, 2023
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Integer Overflow at j2k.c:11114 #1491

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fix j2k.c:11114
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@headshog @rouault
headshog authored and rouault committed Dec 8, 2023
commit 67e6a79bcf6b2ea5503f47954537d14ed37e4a72
8 changes: 8 additions & 0 deletions src/lib/openjp2/j2k.c
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Original file line number Diff line number Diff line change
Expand Up @@ -11101,6 +11101,10 @@ static OPJ_BOOL opj_j2k_read_SQcd_SQcc(opj_j2k_t *p_j2k,
l_tccp->stepsizes[l_band_no].mant = 0;
}
}

if (*p_header_size < l_num_band) {
return OPJ_FALSE;
}
*p_header_size = *p_header_size - l_num_band;
} else {
for (l_band_no = 0; l_band_no < l_num_band; l_band_no++) {
Expand All @@ -11111,6 +11115,10 @@ static OPJ_BOOL opj_j2k_read_SQcd_SQcc(opj_j2k_t *p_j2k,
l_tccp->stepsizes[l_band_no].mant = l_tmp & 0x7ff;
}
}

if (*p_header_size < 2 * l_num_band) {
return OPJ_FALSE;
}
*p_header_size = *p_header_size - 2 * l_num_band;
}

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