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SUSE:SLE-15-SP1:GA
openjpeg
openjpeg-CVE-2020-27843.patch
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File openjpeg-CVE-2020-27843.patch of Package openjpeg
Index: openjpeg-1.5.2/libopenjpeg/t2.c =================================================================== --- openjpeg-1.5.2.orig/libopenjpeg/t2.c +++ openjpeg-1.5.2/libopenjpeg/t2.c @@ -181,7 +181,16 @@ static int t2_encode_packet(opj_tcd_tile /* Writing Packet header */ for (bandno = 0; bandno < res->numbands; bandno++) { opj_tcd_band_t *band = &res->bands[bandno]; - opj_tcd_precinct_t *prc = &band->precincts[precno]; + opj_tcd_precinct_t *prc; + + /* 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) { + return OPJ_FALSE; + } + + prc = &band->precincts[precno]; + for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) { opj_tcd_cblk_enc_t* cblk = &prc->cblks.enc[cblkno]; opj_tcd_layer_t *layer = &cblk->layers[layno];
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