diff -rupN openjpeg-2.3.0/src/bin/jp2/convert.c openjpeg-2.3.0-new/src/bin/jp2/convert.c --- openjpeg-2.3.0/src/bin/jp2/convert.c 2017-10-05 00:23:14.000000000 +0200 +++ openjpeg-2.3.0-new/src/bin/jp2/convert.c 2018-12-20 10:51:16.454336033 +0100 @@ -2210,6 +2210,11 @@ int imagetopnm(opj_image_t * image, cons opj_version(), wr, hr, max); red = image->comps[compno].data; + if (!red) { + fclose(fdest); + continue; + } + adjustR = (image->comps[compno].sgnd ? 1 << (image->comps[compno].prec - 1) : 0); diff -rupN openjpeg-2.3.0/src/bin/jp3d/convert.c openjpeg-2.3.0-new/src/bin/jp3d/convert.c --- openjpeg-2.3.0/src/bin/jp3d/convert.c 2017-10-05 00:23:14.000000000 +0200 +++ openjpeg-2.3.0-new/src/bin/jp3d/convert.c 2018-12-20 10:51:16.453336036 +0100 @@ -297,8 +297,8 @@ opj_volume_t* pgxtovolume(char *relpath, fprintf(stdout, "[INFO] Loading %s \n", pgxfiles[pos]); fseek(f, 0, SEEK_SET); - fscanf(f, "PG%[ \t]%c%c%[ \t+-]%d%[ \t]%d%[ \t]%d", temp, &endian1, &endian2, - signtmp, &prec, temp, &w, temp, &h); + fscanf(f, "PG%31[ \t]%c%c%31[ \t+-]%d%31[ \t]%d%31[ \t]%d", temp, &endian1, + &endian2, signtmp, &prec, temp, &w, temp, &h); i = 0; sign = '+'; diff -rupN openjpeg-2.3.0/src/bin/jpwl/convert.c openjpeg-2.3.0-new/src/bin/jpwl/convert.c --- openjpeg-2.3.0/src/bin/jpwl/convert.c 2017-10-05 00:23:14.000000000 +0200 +++ openjpeg-2.3.0-new/src/bin/jpwl/convert.c 2018-12-20 10:51:16.453336036 +0100 @@ -1348,7 +1348,7 @@ opj_image_t* pgxtoimage(const char *file } fseek(f, 0, SEEK_SET); - if (fscanf(f, "PG%[ \t]%c%c%[ \t+-]%d%[ \t]%d%[ \t]%d", temp, &endian1, + if (fscanf(f, "PG%31[ \t]%c%c%31[ \t+-]%d%31[ \t]%d%31[ \t]%d", temp, &endian1, &endian2, signtmp, &prec, temp, &w, temp, &h) != 9) { fprintf(stderr, "ERROR: Failed to read the right number of element from the fscanf() function!\n");