opj_read_bytes(l_data_header+4,&(box->type), 4);
if(box->length == 0)/* last box */
- {
+ {
const OPJ_OFF_T bleft = opj_stream_get_number_byte_left(cio);
- box->length = (OPJ_UINT32)bleft;
- assert( (OPJ_OFF_T)box->length == bleft );
- return OPJ_TRUE;
+ if (bleft > (OPJ_OFF_T)(0xFFFFFFFFU - 8U)) {
+ opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box sizes higher than 2^32\n");
+ return OPJ_FALSE;
}
+ box->length = (OPJ_UINT32)bleft + 8U;
+ assert( (OPJ_OFF_T)box->length == bleft + 8 );
+ return OPJ_TRUE;
+ }
/* do we have a "special very large box ?" */
/* read then the XLBox */
if (box.type == JP2_JP2C) {
if (jp2->jp2_state & JP2_STATE_HEADER) {
jp2->jp2_state |= JP2_STATE_CODESTREAM;
- opj_free(l_current_data);
+ opj_free(l_current_data);
return OPJ_TRUE;
}
else {
return OPJ_FALSE;
}
/* testcase 1851.pdf.SIGSEGV.ce9.948 */
- else if (box.length < l_nb_bytes_read) {
+ else if (box.length < l_nb_bytes_read) {
opj_event_msg(p_manager, EVT_ERROR, "invalid box size %d (%x)\n", box.length, box.type);
opj_free(l_current_data);
return OPJ_FALSE;
}
}
else {
- if (!(jp2->jp2_state & JP2_STATE_SIGNATURE)) {
- opj_event_msg(p_manager, EVT_ERROR, "Malformed JP2 file format: first box must be JPEG 2000 signature box\n");
- opj_free(l_current_data);
- return OPJ_FALSE;
- }
- if (!(jp2->jp2_state & JP2_STATE_FILE_TYPE)) {
- opj_event_msg(p_manager, EVT_ERROR, "Malformed JP2 file format: second box must be file type box\n");
- opj_free(l_current_data);
- return OPJ_FALSE;
- }
+ if (!(jp2->jp2_state & JP2_STATE_SIGNATURE)) {
+ opj_event_msg(p_manager, EVT_ERROR, "Malformed JP2 file format: first box must be JPEG 2000 signature box\n");
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+ if (!(jp2->jp2_state & JP2_STATE_FILE_TYPE)) {
+ opj_event_msg(p_manager, EVT_ERROR, "Malformed JP2 file format: second box must be file type box\n");
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
jp2->jp2_state |= JP2_STATE_UNKNOWN;
if (opj_stream_skip(stream,l_current_data_size,p_manager) != l_current_data_size) {
opj_event_msg(p_manager, EVT_ERROR, "Problem with skipping JPEG2000 box, stream error\n");