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openjpeg2.29433
openjpeg2-CVE-2020-27843.patch
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File openjpeg2-CVE-2020-27843.patch of Package openjpeg2.29433
Index: openjpeg-2.3.0/src/lib/openjp2/t2.c =================================================================== --- openjpeg-2.3.0.orig/src/lib/openjp2/t2.c +++ openjpeg-2.3.0/src/lib/openjp2/t2.c @@ -770,6 +770,15 @@ static OPJ_BOOL opj_t2_encode_packet(OPJ continue; } + /* Avoid out of bounds access of https://github.com/uclouvain/openjpeg/issues/1297 */ + /* but likely not a proper fix. */ + if (precno >= res->pw * res->ph) { + opj_event_msg(p_manager, EVT_ERROR, + "opj_t2_encode_packet(): accessing precno=%u >= %u\n", + precno, res->pw * res->ph); + return OPJ_FALSE; + } + prc = &band->precincts[precno]; l_nb_blocks = prc->cw * prc->ch; cblk = prc->cblks.enc;
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