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netpbm-security-code.patch
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File netpbm-security-code.patch of Package netpbm
Index: netpbm-10.75.1/analyzer/pgmtexture.c =================================================================== --- netpbm-10.75.1.orig/analyzer/pgmtexture.c 2016-08-22 11:03:30.125759733 +0200 +++ netpbm-10.75.1/analyzer/pgmtexture.c 2016-08-22 16:07:00.985481459 +0200 @@ -97,7 +97,7 @@ vector(unsigned int const nl, float * v; assert(nh >= nl); - + overflow_add(nh - nl, 1); MALLOCARRAY(v, (unsigned) (nh - nl + 1)); if (v == NULL) @@ -129,6 +129,7 @@ matrix (unsigned int const nrl, assert(nrh >= nrl); /* allocate pointers to rows */ + overflow_add(nrh - nrl, 1); MALLOCARRAY(m, (unsigned) (nrh - nrl + 1)); if (m == NULL) pm_error("Unable to allocate memory for a matrix."); @@ -136,7 +137,7 @@ matrix (unsigned int const nrl, m -= ncl; assert (nch >= ncl); - + overflow_add(nch - ncl, 1); /* allocate rows and set pointers to them */ for (i = nrl; i <= nrh; ++i) { MALLOCARRAY(m[i], (unsigned) (nch - ncl + 1)); Index: netpbm-10.75.1/converter/other/gemtopnm.c =================================================================== --- netpbm-10.75.1.orig/converter/other/gemtopnm.c 2016-08-22 11:03:32.209794494 +0200 +++ netpbm-10.75.1/converter/other/gemtopnm.c 2016-08-22 16:07:00.985481459 +0200 @@ -106,6 +106,7 @@ main(argc, argv) pnm_writepnminit( stdout, cols, rows, MAXVAL, type, 0 ); + overflow_add(cols, padright); { /* allocate input row data structure */ int plane; Index: netpbm-10.75.1/converter/other/jpegtopnm.c =================================================================== --- netpbm-10.75.1.orig/converter/other/jpegtopnm.c 2016-08-22 11:03:31.565783752 +0200 +++ netpbm-10.75.1/converter/other/jpegtopnm.c 2016-08-22 16:07:00.989481528 +0200 @@ -861,6 +861,8 @@ convertImage(FILE * /* Calculate output image dimensions so we can allocate space */ jpeg_calc_output_dimensions(cinfoP); + overflow2(cinfoP->output_width, cinfoP->output_components); + /* Start decompressor */ jpeg_start_decompress(cinfoP); Index: netpbm-10.75.1/converter/other/pbmtopgm.c =================================================================== --- netpbm-10.75.1.orig/converter/other/pbmtopgm.c 2016-08-22 11:03:32.205794428 +0200 +++ netpbm-10.75.1/converter/other/pbmtopgm.c 2016-08-22 16:07:00.989481528 +0200 @@ -47,6 +47,7 @@ main(int argc, char *argv[]) { "than the image height (%u rows)", height, rows); outrow = pgm_allocrow(cols) ; + overflow2(width, height); maxval = MIN(PGM_OVERALLMAXVAL, width*height); pgm_writepgminit(stdout, cols, rows, maxval, 0) ; Index: netpbm-10.75.1/converter/other/pnmtoddif.c =================================================================== --- netpbm-10.75.1.orig/converter/other/pnmtoddif.c 2016-08-22 11:03:32.253795228 +0200 +++ netpbm-10.75.1/converter/other/pnmtoddif.c 2016-08-22 16:07:00.989481528 +0200 @@ -629,6 +629,7 @@ main(int argc, char *argv[]) { switch (PNM_FORMAT_TYPE(format)) { case PBM_TYPE: ip.bits_per_pixel = 1; + overflow_add(cols, 7); ip.bytes_per_line = (cols + 7) / 8; ip.spectral = 2; ip.components = 1; @@ -644,6 +645,7 @@ main(int argc, char *argv[]) { ip.polarity = 2; break; case PPM_TYPE: + overflow2(cols, 3); ip.bytes_per_line = 3 * cols; ip.bits_per_pixel = 24; ip.spectral = 5; Index: netpbm-10.75.1/converter/other/pnmtojpeg.c =================================================================== --- netpbm-10.75.1.orig/converter/other/pnmtojpeg.c 2016-08-22 11:03:31.213777880 +0200 +++ netpbm-10.75.1/converter/other/pnmtojpeg.c 2016-08-22 16:07:00.989481528 +0200 @@ -605,7 +605,11 @@ read_scan_script(j_compress_ptr const ci want JPOOL_PERMANENT. */ const unsigned int scan_info_size = nscans * sizeof(jpeg_scan_info); - jpeg_scan_info * const scan_info = + const jpeg_scan_info * scan_info; + + overflow2(nscans, sizeof(jpeg_scan_info)); + + scan_info = (jpeg_scan_info *) (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, scan_info_size); @@ -937,6 +941,8 @@ compute_rescaling_array(JSAMPLE ** const const long half_maxval = maxval / 2; long val; + overflow_add(maxval, 1); + overflow2(maxval+1, sizeof(JSAMPLE)); *rescale_p = (JSAMPLE *) (cinfo.mem->alloc_small) ((j_common_ptr) &cinfo, JPOOL_IMAGE, (size_t) (((long) maxval + 1L) * @@ -1015,6 +1021,7 @@ convert_scanlines(struct jpeg_compress_s */ /* Allocate the libpnm output and compressor input buffers */ + overflow2(cinfo_p->image_width, cinfo_p->input_components); buffer = (*cinfo_p->mem->alloc_sarray) ((j_common_ptr) cinfo_p, JPOOL_IMAGE, (unsigned int) cinfo_p->image_width * cinfo_p->input_components, Index: netpbm-10.75.1/converter/other/pnmtops.c =================================================================== --- netpbm-10.75.1.orig/converter/other/pnmtops.c 2016-08-22 11:03:31.565783752 +0200 +++ netpbm-10.75.1/converter/other/pnmtops.c 2016-08-22 16:07:00.989481528 +0200 @@ -293,17 +293,21 @@ parseCommandLine(int argc, const char ** validateCompDimension(width, 72, "-width value"); validateCompDimension(height, 72, "-height value"); + overflow2(width, 72); cmdlineP->width = width * 72; + overflow2(height, 72); cmdlineP->height = height * 72; if (imagewidthSpec) { validateCompDimension(imagewidth, 72, "-imagewidth value"); + overflow2(imagewidth, 72); cmdlineP->imagewidth = imagewidth * 72; } else cmdlineP->imagewidth = 0; if (imageheightSpec) { - validateCompDimension(imagewidth, 72, "-imageheight value"); + validateCompDimension(imageheight, 72, "-imageheight value"); + overflow2(imageheight, 72); cmdlineP->imageheight = imageheight * 72; } else Index: netpbm-10.75.1/converter/other/pnmtorle.c =================================================================== --- netpbm-10.75.1.orig/converter/other/pnmtorle.c 2016-08-22 11:03:32.205794428 +0200 +++ netpbm-10.75.1/converter/other/pnmtorle.c 2016-08-22 16:07:00.989481528 +0200 @@ -19,6 +19,8 @@ * If you modify this software, you should include a notice giving the * name of the person performing the modification, the date of modification, * and the reason for such modification. + * + * 2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com> */ /* * pnmtorle - A program which will convert pbmplus (ppm or pgm) images Index: netpbm-10.75.1/converter/other/pnmtosgi.c =================================================================== --- netpbm-10.75.1.orig/converter/other/pnmtosgi.c 2016-08-22 11:03:32.209794494 +0200 +++ netpbm-10.75.1/converter/other/pnmtosgi.c 2016-08-22 16:07:00.989481528 +0200 @@ -185,6 +185,7 @@ buildChannels(FILE * const ifP, ScanElem * temp; if (storage != STORAGE_VERBATIM) { + overflow2(channels, rows); MALLOCARRAY_NOFAIL(table, channels * rows); } else table = NULL; Index: netpbm-10.75.1/converter/other/rletopnm.c =================================================================== --- netpbm-10.75.1.orig/converter/other/rletopnm.c 2016-08-22 11:03:32.201794360 +0200 +++ netpbm-10.75.1/converter/other/rletopnm.c 2016-08-22 16:07:00.989481528 +0200 @@ -19,6 +19,8 @@ * If you modify this software, you should include a notice giving the * name of the person performing the modification, the date of modification, * and the reason for such modification. + * + * 2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com> */ /* * rletopnm - A conversion program to convert from Utah's "rle" image format Index: netpbm-10.75.1/converter/other/sgitopnm.c =================================================================== --- netpbm-10.75.1.orig/converter/other/sgitopnm.c 2016-08-22 11:03:32.209794494 +0200 +++ netpbm-10.75.1/converter/other/sgitopnm.c 2016-08-22 16:07:00.989481528 +0200 @@ -377,10 +377,14 @@ readChannels(FILE * const ifP, MALLOCARRAY_NOFAIL(image, head->ysize); } else { maxchannel = 3; + overflow2(head->ysize, maxchannel); MALLOCARRAY_NOFAIL(image, head->ysize * maxchannel); } - if (table) + if (table) { + overflow2(head->xsize, 2); + overflow_add(head->xsize*2, 2); MALLOCARRAY_NOFAIL(temp, WORSTCOMPR(head->xsize)); + } for (channel = 0; channel < maxchannel; ++channel) { unsigned int row; Index: netpbm-10.75.1/converter/other/sirtopnm.c =================================================================== --- netpbm-10.75.1.orig/converter/other/sirtopnm.c 2016-08-22 11:03:32.205794428 +0200 +++ netpbm-10.75.1/converter/other/sirtopnm.c 2016-08-22 16:07:00.989481528 +0200 @@ -69,6 +69,7 @@ char* argv[]; } break; case PPM_TYPE: + overflow3(cols, rows, 3); picsize = cols * rows * 3; planesize = cols * rows; if ( !( sirarray = (unsigned char*) malloc( picsize ) ) ) Index: netpbm-10.75.1/converter/other/tifftopnm.c =================================================================== --- netpbm-10.75.1.orig/converter/other/tifftopnm.c 2016-08-22 11:03:32.209794494 +0200 +++ netpbm-10.75.1/converter/other/tifftopnm.c 2016-08-22 16:07:00.989481528 +0200 @@ -1317,7 +1317,9 @@ convertRasterByRows(pnmOut * const if (scanbuf == NULL) pm_error("can't allocate memory for scanline buffer"); - MALLOCARRAY(samplebuf, cols * spp); + /* samplebuf is unsigned int * !!! */ + samplebuf = (unsigned int *) malloc3(cols , sizeof(unsigned int) , spp); + if (samplebuf == NULL) pm_error("can't allocate memory for row buffer"); Index: netpbm-10.75.1/converter/other/xwdtopnm.c =================================================================== --- netpbm-10.75.1.orig/converter/other/xwdtopnm.c 2016-08-22 11:03:31.641785020 +0200 +++ netpbm-10.75.1/converter/other/xwdtopnm.c 2016-08-22 16:07:00.989481528 +0200 @@ -209,6 +209,10 @@ processX10Header(X10WDFileHeader * cons *colorsP = pnm_allocrow(2); PNM_ASSIGN1((*colorsP)[0], 0); PNM_ASSIGN1((*colorsP)[1], *maxvalP); + overflow_add(h10P->pixmap_width, 15); + if(h10P->pixmap_width < 0) + pm_error("assert: negative width"); + overflow2((((h10P->pixmap_width + 15) / 16) * 16 - h10P->pixmap_width), 8); *padrightP = (((h10P->pixmap_width + 15) / 16) * 16 - h10P->pixmap_width) * 8; *bits_per_itemP = 16; @@ -634,6 +638,7 @@ processX11Header(X11WDFileHeader * cons *colsP = h11FixedP->pixmap_width; *rowsP = h11FixedP->pixmap_height; + overflow2(h11FixedP->bytes_per_line, 8); *padrightP = h11FixedP->bytes_per_line * 8 - h11FixedP->pixmap_width * h11FixedP->bits_per_pixel; Index: netpbm-10.75.1/converter/pbm/mdatopbm.c =================================================================== --- netpbm-10.75.1.orig/converter/pbm/mdatopbm.c 2016-08-22 11:03:33.397814310 +0200 +++ netpbm-10.75.1/converter/pbm/mdatopbm.c 2016-08-22 16:07:00.989481528 +0200 @@ -245,10 +245,13 @@ main(int argc, char **argv) { pm_readlittleshort(infile, &yy); nInCols = yy; } + overflow2(nOutCols, 8); nOutCols = 8 * nInCols; nOutRows = nInRows; - if (bScale) + if (bScale) { + overflow2(nOutRows, 2); nOutRows *= 2; + } data = pbm_allocarray(nOutCols, nOutRows); Index: netpbm-10.75.1/converter/pbm/mgrtopbm.c =================================================================== --- netpbm-10.75.1.orig/converter/pbm/mgrtopbm.c 2016-08-22 11:03:33.481815712 +0200 +++ netpbm-10.75.1/converter/pbm/mgrtopbm.c 2016-08-22 16:07:00.989481528 +0200 @@ -65,6 +65,8 @@ readMgrHeader(FILE * const ifP, if (head.h_high < ' ' || head.l_high < ' ') pm_error("Invalid width field in MGR header"); + overflow_add(*colsP, pad); + *colsP = (((int)head.h_wide - ' ') << 6) + ((int)head.l_wide - ' '); *rowsP = (((int)head.h_high - ' ') << 6) + ((int) head.l_high - ' '); *padrightP = ( ( *colsP + pad - 1 ) / pad ) * pad - *colsP; Index: netpbm-10.75.1/converter/pbm/pbmtogem.c =================================================================== --- netpbm-10.75.1.orig/converter/pbm/pbmtogem.c 2016-08-22 11:03:33.397814310 +0200 +++ netpbm-10.75.1/converter/pbm/pbmtogem.c 2016-08-22 16:07:00.989481528 +0200 @@ -79,6 +79,7 @@ putinit (int const rows, int const cols) bitsperitem = 0; bitshift = 7; outcol = 0; + overflow_add(cols, 7); outmax = (cols + 7) / 8; outrow = (unsigned char *) pm_allocrow (outmax, sizeof (unsigned char)); lastrow = (unsigned char *) pm_allocrow (outmax, sizeof (unsigned char)); Index: netpbm-10.75.1/converter/pbm/pbmtogo.c =================================================================== --- netpbm-10.75.1.orig/converter/pbm/pbmtogo.c 2016-08-22 11:03:33.477815644 +0200 +++ netpbm-10.75.1/converter/pbm/pbmtogo.c 2016-08-22 16:07:00.989481528 +0200 @@ -158,6 +158,7 @@ main(int argc, bitrow = pbm_allocrow(cols); /* Round cols up to the nearest multiple of 8. */ + overflow_add(cols, 7); rucols = ( cols + 7 ) / 8; bytesperrow = rucols; /* GraphOn uses bytes */ rucols = rucols * 8; Index: netpbm-10.75.1/converter/pbm/pbmtolj.c =================================================================== --- netpbm-10.75.1.orig/converter/pbm/pbmtolj.c 2016-08-22 11:03:33.397814310 +0200 +++ netpbm-10.75.1/converter/pbm/pbmtolj.c 2016-08-22 16:07:00.989481528 +0200 @@ -120,7 +120,11 @@ parseCommandLine(int argc, char ** argv, static void allocateBuffers(unsigned int const cols) { + overflow_add(cols, 8); rowBufferSize = (cols + 7) / 8; + overflow_add(rowBufferSize, 128); + overflow_add(rowBufferSize, rowBufferSize+128); + overflow_add(rowBufferSize+10, rowBufferSize/8); packBufferSize = rowBufferSize + (rowBufferSize + 127) / 128 + 1; deltaBufferSize = rowBufferSize + rowBufferSize / 8 + 10; Index: netpbm-10.75.1/converter/pbm/pbmtomda.c =================================================================== --- netpbm-10.75.1.orig/converter/pbm/pbmtomda.c 2016-08-22 11:03:33.477815644 +0200 +++ netpbm-10.75.1/converter/pbm/pbmtomda.c 2016-08-22 16:07:00.989481528 +0200 @@ -179,6 +179,7 @@ int main(int argc, char **argv) nOutRowsUnrounded = bScale ? nInRows/2 : nInRows; + overflow_add(nOutRowsUnrounded, 3); nOutRows = ((nOutRowsUnrounded + 3) / 4) * 4; /* MDA wants rows a multiple of 4 */ nOutCols = nInCols / 8; Index: netpbm-10.75.1/converter/pbm/pbmtoppa/pbm.c =================================================================== --- netpbm-10.75.1.orig/converter/pbm/pbmtoppa/pbm.c 2016-08-22 11:03:33.401814378 +0200 +++ netpbm-10.75.1/converter/pbm/pbmtoppa/pbm.c 2016-08-22 16:07:00.989481528 +0200 @@ -106,6 +106,7 @@ int pbm_readline(pbm_stat* pbm,unsigned return 0; case P4: + overflow_add(pbm->width, 7); tmp=(pbm->width+7)/8; tmp2=fread(data,1,tmp,pbm->fptr); if(tmp2 == tmp) @@ -130,7 +131,8 @@ void pbm_unreadline (pbm_stat *pbm, void return; pbm->unread = 1; - pbm->revdata = malloc ((pbm->width+7)/8); + overflow_add(pbm->width, 7); + pbm->revdata = malloc((pbm->width+7)/8); memcpy (pbm->revdata, data, (pbm->width+7)/8); pbm->current_line--; } Index: netpbm-10.75.1/converter/pbm/pbmtoppa/pbmtoppa.c =================================================================== --- netpbm-10.75.1.orig/converter/pbm/pbmtoppa/pbmtoppa.c 2016-08-22 11:03:33.405814444 +0200 +++ netpbm-10.75.1/converter/pbm/pbmtoppa/pbmtoppa.c 2016-08-22 16:07:00.989481528 +0200 @@ -452,6 +452,7 @@ main(int argc, char *argv[]) { pm_error("main(): unrecognized parameter '%s'", argv[argn]); } + overflow_add(Width, 7); Pwidth=(Width+7)/8; printer.fptr=out; Index: netpbm-10.75.1/converter/pbm/pbmtoxbm.c =================================================================== --- netpbm-10.75.1.orig/converter/pbm/pbmtoxbm.c 2016-08-22 11:03:33.481815712 +0200 +++ netpbm-10.75.1/converter/pbm/pbmtoxbm.c 2016-08-22 16:07:00.989481528 +0200 @@ -351,6 +351,8 @@ convertRaster(FILE * const ifP, unsigned char * bitrow; unsigned int row; + + overflow_add(cols, padright); putinit(xbmVersion); Index: netpbm-10.75.1/converter/pbm/pbmto4425.c =================================================================== --- netpbm-10.75.1.orig/converter/pbm/pbmto4425.c 2016-08-22 11:03:33.393814244 +0200 +++ netpbm-10.75.1/converter/pbm/pbmto4425.c 2016-08-22 16:07:00.993481596 +0200 @@ -2,6 +2,7 @@ #include "nstring.h" #include "pbm.h" +#include <string.h> static char bit_table[2][3] = { {1, 4, 0x10}, @@ -160,7 +161,7 @@ main(int argc, char * argv[]) { xres = vmap_width * 2; yres = vmap_height * 3; - vmap = malloc(vmap_width * vmap_height * sizeof(char)); + vmap = malloc3(vmap_width, vmap_height, sizeof(char)); if(vmap == NULL) { pm_error( "Cannot allocate memory" ); Index: netpbm-10.75.1/converter/pbm/pktopbm.c =================================================================== --- netpbm-10.75.1.orig/converter/pbm/pktopbm.c 2016-08-22 11:03:33.397814310 +0200 +++ netpbm-10.75.1/converter/pbm/pktopbm.c 2016-08-22 16:07:00.993481596 +0200 @@ -280,6 +280,7 @@ main(int argc, char *argv[]) { if (flagbyte == 7) { /* long form preamble */ integer packetlength = get32() ; /* character packet length */ car = get32() ; /* character number */ + overflow_add(packetlength, pktopbm_pkloc); endofpacket = packetlength + pktopbm_pkloc; /* calculate end of packet */ if ((car >= MAXPKCHAR) || !filename[car]) { Index: netpbm-10.75.1/converter/pbm/thinkjettopbm.l =================================================================== --- netpbm-10.75.1.orig/converter/pbm/thinkjettopbm.l 2016-08-22 11:03:33.481815712 +0200 +++ netpbm-10.75.1/converter/pbm/thinkjettopbm.l 2016-08-22 16:07:00.993481596 +0200 @@ -114,7 +114,9 @@ DIG [0-9] <RASTERMODE>\033\*b{DIG}+W { int l; if (rowCount >= rowCapacity) { + overflow_add(rowCapacity, 100); rowCapacity += 100; + overflow2(rowCapacity, sizeof *rows); rows = realloc (rows, rowCapacity * sizeof *rows); if (rows == NULL) pm_error ("Out of memory."); @@ -226,6 +228,8 @@ yywrap (void) /* * Quite simple since ThinkJet bit arrangement matches PBM */ + + overflow2(maxRowLength, 8); pbm_writepbminit(stdout, maxRowLength*8, rowCount, 0); packed_bitrow = malloc(maxRowLength); Index: netpbm-10.75.1/converter/pgm/lispmtopgm.c =================================================================== --- netpbm-10.75.1.orig/converter/pgm/lispmtopgm.c 2016-08-22 11:03:32.361797030 +0200 +++ netpbm-10.75.1/converter/pgm/lispmtopgm.c 2016-08-22 16:07:00.993481596 +0200 @@ -58,6 +58,7 @@ main( argc, argv ) pm_error( "depth (%d bits) is too large", depth); pgm_writepgminit( stdout, cols, rows, (gray) maxval, 0 ); + overflow_add(cols, 7); grayrow = pgm_allocrow( ( cols + 7 ) / 8 * 8 ); for ( row = 0; row < rows; ++row ) @@ -102,7 +103,9 @@ getinit( file, colsP, rowsP, depthP, pad if ( *depthP == 0 ) *depthP = 1; /* very old file */ - + + overflow_add((int)colsP, 31); + *padrightP = ( ( *colsP + 31 ) / 32 ) * 32 - *colsP; if ( *colsP != (cols_32 - *padrightP) ) { Index: netpbm-10.75.1/converter/pgm/psidtopgm.c =================================================================== --- netpbm-10.75.1.orig/converter/pgm/psidtopgm.c 2016-08-22 11:03:32.361797030 +0200 +++ netpbm-10.75.1/converter/pgm/psidtopgm.c 2016-08-22 16:07:00.993481596 +0200 @@ -78,6 +78,7 @@ main(int argc, pm_error("bits/sample (%d) is too large.", bitspersample); pgm_writepgminit(stdout, cols, rows, maxval, 0); + overflow_add(cols, 7); grayrow = pgm_allocrow((cols + 7) / 8 * 8); for (row = 0; row < rows; ++row) { unsigned int col; Index: netpbm-10.75.1/converter/ppm/ilbmtoppm.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/ilbmtoppm.c 2016-08-22 11:03:33.261812042 +0200 +++ netpbm-10.75.1/converter/ppm/ilbmtoppm.c 2016-08-22 16:07:00.993481596 +0200 @@ -606,6 +606,7 @@ decode_row(FILE * const ifP, rawtype *chp; cols = bmhdP->w; + overflow_add(cols, 15); bytes = RowBytes(cols); for( plane = 0; plane < nPlanes; plane++ ) { int mask; @@ -693,6 +694,23 @@ decode_mask(FILE * const ifP, Multipalette handling ****************************************************************************/ +static void * +xmalloc2(x, y) + int x; + int y; +{ + void *mem; + + overflow2(x,y); + if( x * y == 0 ) + return NULL; + + mem = malloc2(x,y); + if( mem == NULL ) + pm_error("out of memory allocating %d bytes", x * y); + return mem; +} + static void multi_adjust(cmap, row, palchange) @@ -1355,6 +1373,9 @@ dcol_to_ppm(FILE * const ifP, if( redmaxval != maxval || greenmaxval != maxval || bluemaxval != maxval ) pm_message("scaling colors to %d bits", pm_maxvaltobits(maxval)); + overflow_add(redmaxval, 1); + overflow_add(greenmaxval, 1); + overflow_add(bluemaxval, 1); MALLOCARRAY_NOFAIL(redtable, redmaxval +1); MALLOCARRAY_NOFAIL(greentable, greenmaxval +1); MALLOCARRAY_NOFAIL(bluetable, bluemaxval +1); @@ -1784,7 +1805,9 @@ PCHG_ConvertSmall(PCHG, cmap, mask, data ChangeCount32 = *data++; datasize -= 2; + overflow_add(ChangeCount16, ChangeCount32); changes = ChangeCount16 + ChangeCount32; + overflow_add(changes, 1); for( i = 0; i < changes; i++ ) { if( totalchanges >= PCHG->TotalChanges ) goto fail; if( datasize < 2 ) goto fail; @@ -2049,6 +2072,9 @@ read_pchg(FILE * const ifP, cmap->mp_change[i] = NULL; if( PCHG.StartLine < 0 ) { int nch; + if(PCHG.MaxReg < PCHG.MinReg) + pm_error("assert: MinReg > MaxReg"); + overflow_add(PCHG.MaxReg-PCHG.MinReg, 2); nch = PCHG.MaxReg - PCHG.MinReg +1; MALLOCARRAY_NOFAIL(cmap->mp_init, nch + 1); for( i = 0; i < nch; i++ ) @@ -2125,6 +2151,7 @@ process_body( FILE * const ifP, if (typeid == ID_ILBM) { int isdeep; + overflow_add(bmhdP->w, 15); MALLOCARRAY_NOFAIL(ilbmrow, RowBytes(bmhdP->w)); *viewportmodesP |= fakeviewport; /* -isham/-isehb */ Index: netpbm-10.75.1/converter/ppm/imgtoppm.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/imgtoppm.c 2016-08-22 11:03:33.089809173 +0200 +++ netpbm-10.75.1/converter/ppm/imgtoppm.c 2016-08-22 16:07:00.993481596 +0200 @@ -84,6 +84,7 @@ main(int argc, char ** argv) { len = atoi((char*) buf ); if ( fread( buf, len, 1, ifp ) != 1 ) pm_error( "bad colormap buf" ); + overflow2(cmaplen, 3); if ( cmaplen * 3 != len ) { pm_message( @@ -105,6 +106,7 @@ main(int argc, char ** argv) { pm_error( "bad pixel data header" ); buf[8] = '\0'; len = atoi((char*) buf ); + overflow2(cols, rows); if ( len != cols * rows ) pm_message( "pixel data length (%d) does not match image size (%d)", Index: netpbm-10.75.1/converter/ppm/Makefile =================================================================== --- netpbm-10.75.1.orig/converter/ppm/Makefile 2016-08-22 11:03:33.089809173 +0200 +++ netpbm-10.75.1/converter/ppm/Makefile 2016-08-22 16:07:00.993481596 +0200 @@ -11,7 +11,7 @@ SUBDIRS = hpcdtoppm ppmtompeg PORTBINARIES = 411toppm eyuvtoppm gouldtoppm ilbmtoppm imgtoppm \ leaftoppm mtvtoppm neotoppm \ - pcxtoppm pc1toppm pi1toppm picttoppm pjtoppm \ + pcxtoppm pc1toppm pi1toppm pjtoppm \ ppmtoacad ppmtoapplevol ppmtoarbtxt ppmtoascii \ ppmtobmp ppmtoeyuv ppmtogif ppmtoicr ppmtoilbm \ ppmtoleaf ppmtolj ppmtomitsu ppmtoneo \ Index: netpbm-10.75.1/converter/ppm/pcxtoppm.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/pcxtoppm.c 2016-08-22 11:03:33.261812042 +0200 +++ netpbm-10.75.1/converter/ppm/pcxtoppm.c 2016-08-22 16:07:00.993481596 +0200 @@ -409,6 +409,7 @@ pcx_planes_to_pixels(pixels, bitplanes, /* * clear the pixel buffer */ + overflow2(bytesperline, 8); npixels = (bytesperline * 8) / bitsperpixel; p = pixels; while (--npixels >= 0) @@ -470,6 +471,7 @@ pcx_16col_to_ppm(FILE * const ifP, } /* BytesPerLine should be >= BitsPerPixel * cols / 8 */ + overflow2(BytesPerLine, 8); rawcols = BytesPerLine * 8 / BitsPerPixel; if (headerCols > rawcols) { pm_message("warning - BytesPerLine = %d, " Index: netpbm-10.75.1/converter/ppm/picttoppm.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/picttoppm.c 2016-08-22 11:03:33.261812042 +0200 +++ netpbm-10.75.1/converter/ppm/picttoppm.c 2016-08-22 16:07:00.993481596 +0200 @@ -1,3 +1,5 @@ +#error "Unfixable. Don't ship me" + /* * picttoppm.c -- convert a MacIntosh PICT file to PPM format. * Index: netpbm-10.75.1/converter/ppm/pjtoppm.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/pjtoppm.c 2016-08-22 11:03:33.257811975 +0200 +++ netpbm-10.75.1/converter/ppm/pjtoppm.c 2016-08-22 16:07:00.993481596 +0200 @@ -127,19 +127,21 @@ main(argc, argv) case 'V': /* send plane */ case 'W': /* send last plane */ if (rows == -1 || r >= rows || image == NULL) { - if (rows == -1 || r >= rows) + if (rows == -1 || r >= rows) { + overflow_add(rows, 100); rows += 100; + } if (image == NULL) { - MALLOCARRAY(image, rows * planes); - MALLOCARRAY(imlen, rows * planes); + image = (unsigned char **) + malloc3(rows , planes , sizeof(unsigned char *)); + imlen = (int *) malloc3(rows , planes, sizeof(int)); } else { + overflow2(rows,planes); image = (unsigned char **) - realloc(image, - rows * planes * + realloc2(image, rows * planes, sizeof(unsigned char *)); - imlen = (int *) - realloc(imlen, rows * planes * sizeof(int)); + imlen = (int *) realloc2(imlen, rows * planes, sizeof(int)); } } if (image == NULL || imlen == NULL) @@ -212,8 +214,10 @@ main(argc, argv) for (i = 0, c = 0; c < imlen[p + r * planes]; c += 2) for (cmd = image[p + r * planes][c], val = image[p + r * planes][c+1]; - cmd >= 0 && i < newcols; cmd--, i++) + cmd >= 0 && i < newcols; cmd--, i++) { buf[i] = val; + overflow_add(i, 1); + } cols = cols > i ? cols : i; free(image[p + r * planes]); /* @@ -224,6 +228,7 @@ main(argc, argv) image[p + r * planes] = (unsigned char *) realloc(buf, i); } } + overflow2(cols, 8); cols *= 8; } Index: netpbm-10.75.1/converter/ppm/ppmtoeyuv.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/ppmtoeyuv.c 2016-08-22 11:03:32.469798831 +0200 +++ netpbm-10.75.1/converter/ppm/ppmtoeyuv.c 2016-08-22 16:07:00.993481596 +0200 @@ -114,6 +114,7 @@ create_multiplication_tables(const pixva int index; + overflow_add(maxval, 1); MALLOCARRAY_NOFAIL(mult299 , maxval+1); MALLOCARRAY_NOFAIL(mult587 , maxval+1); MALLOCARRAY_NOFAIL(mult114 , maxval+1); Index: netpbm-10.75.1/converter/ppm/ppmtoilbm.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/ppmtoilbm.c 2016-08-22 11:03:32.469798831 +0200 +++ netpbm-10.75.1/converter/ppm/ppmtoilbm.c 2016-08-22 16:07:00.993481596 +0200 @@ -190,6 +190,7 @@ makeValTable(int const oldmaxval, unsigned int i; int * table; + overflow_add(oldmaxval, 1); MALLOCARRAY_NOFAIL(table, oldmaxval + 1); for (i = 0; i <= oldmaxval; ++i) table[i] = ROUNDDIV(i * newmaxval, oldmaxval); @@ -1644,6 +1645,7 @@ ppmToRgb8(FILE * const ifP, maskmethod = 0; /* no masking - RGB8 uses genlock bits */ compmethod = 4; /* RGB8 files are always compressed */ + overflow2(cols, 4); MALLOCARRAY_NOFAIL(compr_row, cols * 4); if( maxval != 255 ) { @@ -1735,6 +1737,7 @@ ppmToRgbn(FILE * const ifP, maskmethod = 0; /* no masking - RGBN uses genlock bits */ compmethod = 4; /* RGBN files are always compressed */ + overflow2(cols, 2); MALLOCARRAY_NOFAIL(compr_row, cols * 2); if( maxval != 15 ) { @@ -2298,8 +2301,10 @@ main(int argc, char ** argv) { MALLOCARRAY_NOFAIL(coded_rowbuf, RowBytes(cols)); for (i = 0; i < RowBytes(cols); ++i) coded_rowbuf[i] = 0; - if (DO_COMPRESS) + if (DO_COMPRESS) { + overflow_add(cols,15); pm_rlenc_allocoutbuf(&compr_rowbuf, RowBytes(cols), PM_RLE_PACKBITS); + } } switch (mode) { Index: netpbm-10.75.1/converter/ppm/ppmtolj.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/ppmtolj.c 2016-08-22 11:03:32.469798831 +0200 +++ netpbm-10.75.1/converter/ppm/ppmtolj.c 2016-08-22 16:07:00.993481596 +0200 @@ -181,7 +181,8 @@ int main(int argc, char *argv[]) { ppm_readppminit( ifp, &cols, &rows, &maxval, &format ); pixelrow = ppm_allocrow( cols ); - + + overflow2(cols, 6); obuf = (unsigned char *) pm_allocrow(cols * 3, sizeof(unsigned char)); cbuf = (unsigned char *) pm_allocrow(cols * 6, sizeof(unsigned char)); if (mode == C_TRANS_MODE_DELTA) Index: netpbm-10.75.1/converter/ppm/ppmtomitsu.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/ppmtomitsu.c 2016-08-22 11:03:33.257811975 +0200 +++ netpbm-10.75.1/converter/ppm/ppmtomitsu.c 2016-08-22 16:07:00.993481596 +0200 @@ -685,6 +685,8 @@ main(int argc, char * argv[]) { medias = MSize_User; if (dpi300) { + overflow2(medias.maxcols, 2); + overflow2(medias.maxrows, 2); medias.maxcols *= 2; medias.maxrows *= 2; } Index: netpbm-10.75.1/converter/ppm/ppmtopcx.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/ppmtopcx.c 2016-08-22 11:03:33.089809173 +0200 +++ netpbm-10.75.1/converter/ppm/ppmtopcx.c 2016-08-22 16:07:00.993481596 +0200 @@ -425,6 +425,8 @@ ppmTo16ColorPcx(pixel ** cons else Planes = 1; } } + overflow2(BitsPerPixel, cols); + overflow_add(BitsPerPixel * cols, 7); BytesPerLine = ((cols * BitsPerPixel) + 7) / 8; MALLOCARRAY_NOFAIL(indexRow, cols); MALLOCARRAY_NOFAIL(planesrow, BytesPerLine); Index: netpbm-10.75.1/converter/ppm/ppmtopict.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/ppmtopict.c 2016-08-22 11:03:32.469798831 +0200 +++ netpbm-10.75.1/converter/ppm/ppmtopict.c 2016-08-22 16:07:00.997481665 +0200 @@ -450,6 +450,8 @@ main(int argc, const char ** argv) { putShort(stdout, 0); /* mode */ /* Finally, write out the data. */ + overflow_add(cols/MAX_COUNT, 1); + overflow_add(cols, cols/MAX_COUNT+1); outBuf = malloc((unsigned)(cols+cols/MAX_COUNT+1)); for (row = 0, oc = 0; row < rows; ++row) { unsigned int rowSize; Index: netpbm-10.75.1/converter/ppm/ppmtopj.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/ppmtopj.c 2016-08-22 11:03:33.085809106 +0200 +++ netpbm-10.75.1/converter/ppm/ppmtopj.c 2016-08-22 16:07:00.997481665 +0200 @@ -179,6 +179,7 @@ char *argv[]; pixels = ppm_readppm( ifp, &cols, &rows, &maxval ); pm_close( ifp ); + overflow2(cols,2); obuf = (unsigned char *) pm_allocrow(cols, sizeof(unsigned char)); cbuf = (unsigned char *) pm_allocrow(cols * 2, sizeof(unsigned char)); Index: netpbm-10.75.1/converter/ppm/ppmtopjxl.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/ppmtopjxl.c 2016-08-22 11:03:33.261812042 +0200 +++ netpbm-10.75.1/converter/ppm/ppmtopjxl.c 2016-08-22 16:07:00.997481665 +0200 @@ -266,6 +266,8 @@ main(int argc, const char * argv[]) { pm_error("image too large; reduce with ppmscale"); if (maxval > PCL_MAXVAL) pm_error("color range too large; reduce with ppmcscale"); + if (cols < 0 || rows < 0) + pm_error("negative size is not possible"); /* Figure out the colormap. */ pm_message("Computing colormap..."); @@ -286,6 +288,8 @@ main(int argc, const char * argv[]) { case 0: /* direct mode (no palette) */ bpp = bitsperpixel(maxval); /* bits per pixel */ bpg = bpp; bpb = bpp; + overflow2(bpp, 3); + overflow_add(bpp*3, 7); bpp = (bpp*3+7)>>3; /* bytes per pixel now */ bpr = (bpp<<3)-bpg-bpb; bpp *= cols; /* bytes per row now */ @@ -295,9 +299,13 @@ main(int argc, const char * argv[]) { case 3: case 7: pclindex++; default: bpp = 8/pclindex; + overflow_add(cols, bpp); + if(bpp == 0) + pm_error("assert: no bpp"); bpp = (cols+bpp-1)/bpp; /* bytes per row */ } } + overflow2(bpp,2); inrow = (char *)malloc((unsigned)bpp); outrow = (char *)malloc((unsigned)bpp*2); runcnt = (signed char *)malloc((unsigned)bpp); Index: netpbm-10.75.1/converter/ppm/ppmtowinicon.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/ppmtowinicon.c 2016-08-22 11:03:33.261812042 +0200 +++ netpbm-10.75.1/converter/ppm/ppmtowinicon.c 2016-08-22 16:07:00.997481665 +0200 @@ -12,6 +12,7 @@ #include <math.h> #include <string.h> +#include <stdlib.h> #include "pm_c_util.h" #include "winico.h" @@ -214,6 +215,7 @@ createAndBitmap (gray ** const ba, int c MALLOCARRAY_NOFAIL(rowData, rows); icBitmap->xBytes = xBytes; icBitmap->data = rowData; + overflow2(xBytes, rows); icBitmap->size = xBytes * rows; for (y=0;y<rows;y++) { u1 * row; @@ -342,6 +344,7 @@ create4Bitmap (pixel ** const pa, int co MALLOCARRAY_NOFAIL(rowData, rows); icBitmap->xBytes = xBytes; icBitmap->data = rowData; + overflow2(xBytes, rows); icBitmap->size = xBytes * rows; for (y=0;y<rows;y++) { @@ -402,6 +405,7 @@ create8Bitmap (pixel ** const pa, int co MALLOCARRAY_NOFAIL(rowData, rows); icBitmap->xBytes = xBytes; icBitmap->data = rowData; + overflow2(xBytes, rows); icBitmap->size = xBytes * rows; for (y=0;y<rows;y++) { @@ -709,6 +713,10 @@ addEntryToIcon(MS_Ico const MSIcon entry->bitcount = bpp; entry->ih = createInfoHeader(entry, xorBitmap, andBitmap); entry->colors = palette->colors; + overflow2(4, entry->color_count); + overflow_add(xorBitmap->size, andBitmap->size); + overflow_add(xorBitmap->size + andBitmap->size, 40); + overflow_add(xorBitmap->size + andBitmap->size + 40, 4 * entry->color_count); entry->size_in_bytes = xorBitmap->size + andBitmap->size + 40 + (4 * entry->color_count); if (verbose) Index: netpbm-10.75.1/converter/ppm/ppmtoxpm.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/ppmtoxpm.c 2016-08-22 11:03:33.257811975 +0200 +++ netpbm-10.75.1/converter/ppm/ppmtoxpm.c 2016-08-22 16:07:00.997481665 +0200 @@ -197,6 +197,7 @@ genNumstr(unsigned int const input, int unsigned int i; /* Allocate memory for printed number. Abort if error. */ + overflow_add(digits, 1); if (!(str = (char *) malloc(digits + 1))) pm_error("out of memory"); @@ -314,6 +315,7 @@ genCmap(colorhist_vector const chv, unsigned int charsPerPixel; unsigned int xpmMaxval; + if (includeTransparent) overflow_add(ncolors, 1); MALLOCARRAY(cmap, cmapSize); if (cmapP == NULL) pm_error("Out of memory allocating %u bytes for a color map.", Index: netpbm-10.75.1/converter/ppm/qrttoppm.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/qrttoppm.c 2016-08-22 11:03:32.473798897 +0200 +++ netpbm-10.75.1/converter/ppm/qrttoppm.c 2016-08-22 16:07:00.997481665 +0200 @@ -46,7 +46,7 @@ main( argc, argv ) ppm_writeppminit( stdout, cols, rows, maxval, 0 ); pixelrow = ppm_allocrow( cols ); - buf = (unsigned char *) malloc( 3 * cols ); + buf = (unsigned char *) malloc2( 3 , cols ); if ( buf == (unsigned char *) 0 ) pm_error( "out of memory" ); Index: netpbm-10.75.1/converter/ppm/sldtoppm.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/sldtoppm.c 2016-08-22 11:03:33.257811975 +0200 +++ netpbm-10.75.1/converter/ppm/sldtoppm.c 2016-08-22 16:07:00.997481665 +0200 @@ -464,6 +464,8 @@ slider(slvecfn slvec, /* Allocate image buffer and clear it to black. */ + overflow_add(ixdots,1); + overflow_add(iydots,1); pixels = ppm_allocarray(pixcols = ixdots + 1, pixrows = iydots + 1); PPM_ASSIGN(rgbcolor, 0, 0, 0); ppmd_filledrectangle(pixels, pixcols, pixrows, pixmaxval, 0, 0, Index: netpbm-10.75.1/converter/ppm/ximtoppm.c =================================================================== --- netpbm-10.75.1.orig/converter/ppm/ximtoppm.c 2016-08-22 11:03:33.257811975 +0200 +++ netpbm-10.75.1/converter/ppm/ximtoppm.c 2016-08-22 16:07:00.997481665 +0200 @@ -117,6 +117,7 @@ ReadXimHeader(FILE * const in_fp, header->bits_channel = atoi(a_head.bits_per_channel); header->alpha_flag = atoi(a_head.alpha_channel); if (strlen(a_head.author)) { + overflow_add(strlen(a_head.author),1); if (!(header->author = calloc((unsigned int)strlen(a_head.author)+1, 1))) { pm_message("ReadXimHeader: can't calloc author string" ); @@ -126,6 +127,7 @@ ReadXimHeader(FILE * const in_fp, strncpy(header->author, a_head.author, strlen(a_head.author)); } if (strlen(a_head.date)) { + overflow_add(strlen(a_head.date),1); if (!(header->date =calloc((unsigned int)strlen(a_head.date)+1,1))){ pm_message("ReadXimHeader: can't calloc date string" ); return(0); @@ -134,6 +136,7 @@ ReadXimHeader(FILE * const in_fp, strncpy(header->date, a_head.date, strlen(a_head.date)); } if (strlen(a_head.program)) { + overflow_add(strlen(a_head.program),1); if (!(header->program = calloc( (unsigned int)strlen(a_head.program) + 1, 1))) { pm_message("ReadXimHeader: can't calloc program string" ); @@ -160,6 +163,7 @@ ReadXimHeader(FILE * const in_fp, if (header->nchannels == 3 && header->bits_channel == 8) header->ncolors = 0; else if (header->nchannels == 1 && header->bits_channel == 8) { + overflow2(header->ncolors, sizeof(Color)); header->colors = (Color *)calloc((unsigned int)header->ncolors, sizeof(Color)); if (header->colors == NULL) { Index: netpbm-10.75.1/editor/pamcut.c =================================================================== --- netpbm-10.75.1.orig/editor/pamcut.c 2016-08-22 11:03:30.437764936 +0200 +++ netpbm-10.75.1/editor/pamcut.c 2016-08-22 16:07:00.997481665 +0200 @@ -655,6 +655,8 @@ cutOneImage(FILE * const ifP outpam = inpam; /* Initial value -- most fields should be same */ outpam.file = ofP; + overflow_add(rightcol, 1); + overflow_add(bottomrow, 1); outpam.width = rightcol - leftcol + 1; outpam.height = bottomrow - toprow + 1; Index: netpbm-10.75.1/editor/pbmreduce.c =================================================================== --- netpbm-10.75.1.orig/editor/pbmreduce.c 2016-08-22 16:07:00.997481665 +0200 +++ netpbm-10.75.1/editor/pbmreduce.c 2016-08-22 16:11:24.057974939 +0200 @@ -150,6 +150,7 @@ initializeFloydSteinberg(struct FS * co unsigned int col; + overflow_add(newcols, 2); MALLOCARRAY(fsP->thiserr, newcols + 2); MALLOCARRAY(fsP->nexterr, newcols + 2); Index: netpbm-10.75.1/editor/pnmgamma.c =================================================================== --- netpbm-10.75.1.orig/editor/pnmgamma.c 2016-08-22 11:03:30.613767872 +0200 +++ netpbm-10.75.1/editor/pnmgamma.c 2016-08-22 16:07:00.997481665 +0200 @@ -596,6 +596,7 @@ createGammaTables(enum transferFunction xelval ** const btableP) { /* Allocate space for the tables. */ + overflow_add(maxval, 1); MALLOCARRAY(*rtableP, maxval+1); MALLOCARRAY(*gtableP, maxval+1); MALLOCARRAY(*btableP, maxval+1); Index: netpbm-10.75.1/editor/pnmhisteq.c =================================================================== --- netpbm-10.75.1.orig/editor/pnmhisteq.c 2016-08-22 11:03:30.441765004 +0200 +++ netpbm-10.75.1/editor/pnmhisteq.c 2016-08-22 16:07:00.997481665 +0200 @@ -107,6 +107,7 @@ computeLuminosityHistogram(xel * const * unsigned int pixelCount; unsigned int * lumahist; + overflow_add(maxval, 1); MALLOCARRAY(lumahist, maxval + 1); if (lumahist == NULL) pm_error("Out of storage allocating array for %u histogram elements", Index: netpbm-10.75.1/editor/pnmindex.csh =================================================================== --- netpbm-10.75.1.orig/editor/pnmindex.csh 2016-08-22 16:07:00.977481322 +0200 +++ netpbm-10.75.1/editor/pnmindex.csh 2016-08-22 16:07:00.997481665 +0200 @@ -1,5 +1,8 @@ #!/bin/csh -f # +echo "Unsafe code, needs debugging, do not ship" +exit 1 +# # pnmindex - build a visual index of a bunch of anymaps # # Copyright (C) 1991 by Jef Poskanzer. Index: netpbm-10.75.1/editor/pnmpad.c =================================================================== --- netpbm-10.75.1.orig/editor/pnmpad.c 2016-08-22 11:03:30.561767005 +0200 +++ netpbm-10.75.1/editor/pnmpad.c 2016-08-22 16:07:00.997481665 +0200 @@ -631,6 +631,8 @@ main(int argc, const char ** argv) { computePadSizes(cmdline, cols, rows, &lpad, &rpad, &tpad, &bpad); + overflow_add(cols, lpad); + overflow_add(cols + lpad, rpad); newcols = cols + lpad + rpad; if (PNM_FORMAT_TYPE(format) == PBM_TYPE) Index: netpbm-10.75.1/editor/pnmremap.c =================================================================== --- netpbm-10.75.1.orig/editor/pnmremap.c 2016-08-22 11:03:30.437764936 +0200 +++ netpbm-10.75.1/editor/pnmremap.c 2016-08-22 16:07:00.997481665 +0200 @@ -429,7 +429,7 @@ initFserr(struct pam * const pamP, unsigned int plane; unsigned int const fserrSize = pamP->width + 2; - + overflow_add(pamP->width, 2); fserrP->width = pamP->width; MALLOCARRAY(fserrP->thiserr, pamP->depth); @@ -467,6 +467,7 @@ floydInitRow(struct pam * const pamP, st int col; + overflow_add(pamP->width, 2); for (col = 0; col < pamP->width + 2; ++col) { unsigned int plane; for (plane = 0; plane < pamP->depth; ++plane) Index: netpbm-10.75.1/editor/pnmscalefixed.c =================================================================== --- netpbm-10.75.1.orig/editor/pnmscalefixed.c 2016-08-22 11:03:30.561767005 +0200 +++ netpbm-10.75.1/editor/pnmscalefixed.c 2016-08-22 16:07:00.997481665 +0200 @@ -214,6 +214,8 @@ compute_output_dimensions(const struct c const int rows, const int cols, int * newrowsP, int * newcolsP) { + overflow2(rows, cols); + if (cmdline.pixels) { if (rows * cols <= cmdline.pixels) { *newrowsP = rows; @@ -265,6 +267,8 @@ compute_output_dimensions(const struct c if (*newcolsP < 1) *newcolsP = 1; if (*newrowsP < 1) *newrowsP = 1; + + overflow2(*newcolsP, *newrowsP); } @@ -446,6 +450,9 @@ main(int argc, char **argv ) { unfilled. We can address that by stretching, whereas the other case would require throwing away some of the input. */ + + overflow2(newcols, SCALE); + overflow2(newrows, SCALE); sxscale = SCALE * newcols / cols; syscale = SCALE * newrows / rows; Index: netpbm-10.75.1/editor/pnmshear.c =================================================================== --- netpbm-10.75.1.orig/editor/pnmshear.c 2016-08-22 11:03:30.441765004 +0200 +++ netpbm-10.75.1/editor/pnmshear.c 2016-08-22 16:07:00.997481665 +0200 @@ -15,6 +15,7 @@ #include <assert.h> #include <math.h> #include <string.h> +#include <limits.h> #include "pm_c_util.h" #include "mallocvar.h" @@ -242,6 +243,11 @@ main(int argc, const char * argv[]) { shearfac = fabs(tan(cmdline.angle)); + if(rows * shearfac >= INT_MAX-1) + pm_error("image too large"); + + overflow_add(rows * shearfac, cols+1); + newcols = rows * shearfac + cols + 0.999999; pnm_writepnminit(stdout, newcols, rows, newmaxval, newformat, 0); Index: netpbm-10.75.1/editor/ppmdither.c =================================================================== --- netpbm-10.75.1.orig/editor/ppmdither.c 2016-08-22 11:03:30.445765070 +0200 +++ netpbm-10.75.1/editor/ppmdither.c 2016-08-22 16:07:00.997481665 +0200 @@ -355,7 +355,11 @@ dithMatrix(unsigned int const dithPower) unsigned int const dithMatSize = (dithDim * sizeof(*dithMat)) + /* pointers */ (dithDim * dithDim * sizeof(**dithMat)); /* data */ - + + overflow2(dithDim, sizeof(*dithMat)); + overflow3(dithDim, dithDim, sizeof(**dithMat)); + overflow_add(dithDim * sizeof(*dithMat), dithDim * dithDim * sizeof(**dithMat)); + dithMat = malloc(dithMatSize); if (dithMat == NULL) Index: netpbm-10.75.1/editor/specialty/pamoil.c =================================================================== --- netpbm-10.75.1.orig/editor/specialty/pamoil.c 2016-08-22 11:03:30.445765070 +0200 +++ netpbm-10.75.1/editor/specialty/pamoil.c 2016-08-22 16:07:00.997481665 +0200 @@ -112,6 +112,7 @@ main(int argc, char *argv[] ) { tuples = pnm_readpam(ifp, &inpam, PAM_STRUCT_SIZE(tuple_type)); pm_close(ifp); + overflow_add(inpam.maxval, 1); MALLOCARRAY(hist, inpam.maxval + 1); if (hist == NULL) pm_error("Unable to allocate memory for histogram."); Index: netpbm-10.75.1/generator/pbmtext.c =================================================================== --- netpbm-10.75.1.orig/generator/pbmtext.c 2016-08-22 11:03:30.713769541 +0200 +++ netpbm-10.75.1/generator/pbmtext.c 2016-08-22 16:16:44.535446899 +0200 @@ -744,6 +744,7 @@ getText(char const cmdlineText[ pm_error("A line of input text is longer than %u characters." "Cannot process", (unsigned int) MAXLINECHARS-1); if (lineCount >= maxlines) { + overflow2(maxlines, 2); maxlines *= 2; REALLOCARRAY(textArray, maxlines); if (textArray == NULL) @@ -780,6 +781,7 @@ computeMargins(struct CmdlineInfo const *hmarginP = fontP->maxwidth; } else { *vmarginP = fontP->maxheight; + overflow2(2, fontP->maxwidth); *hmarginP = 2 * fontP->maxwidth; } } Index: netpbm-10.75.1/generator/pgmkernel.c =================================================================== --- netpbm-10.75.1.orig/generator/pgmkernel.c 2016-08-22 11:03:30.713769541 +0200 +++ netpbm-10.75.1/generator/pgmkernel.c 2016-08-22 16:07:01.001481732 +0200 @@ -214,6 +214,7 @@ main(int argc, const char * argv[]) { /* Output matrix is symmetric vertically and horizontally. */ + overflow_add(cmdline.rows, 1); arows = (cmdline.rows + 1) / 2; /* Half the number of rows. Add 1 if odd. */ halfKernel = pgm_allocarray(cmdline.cols, arows); Index: netpbm-10.75.1/lib/libpam.c =================================================================== --- netpbm-10.75.1.orig/lib/libpam.c 2016-08-22 11:03:31.113776213 +0200 +++ netpbm-10.75.1/lib/libpam.c 2016-08-22 16:07:01.001481732 +0200 @@ -224,7 +224,8 @@ allocPamRow(const struct pam * const pam unsigned int const bytesPerTuple = allocationDepth(pamP) * sizeof(sample); tuple * tuplerow; - tuplerow = malloc(pamP->width * (sizeof(tuple *) + bytesPerTuple)); + overflow_add(sizeof(tuple *), bytesPerTuple); + tuplerow = malloc2(pamP->width, (sizeof(tuple *) + bytesPerTuple)); if (tuplerow != NULL) { /* Now we initialize the pointers to the individual tuples Index: netpbm-10.75.1/lib/libpammap.c =================================================================== --- netpbm-10.75.1.orig/lib/libpammap.c 2016-08-22 11:03:31.113776213 +0200 +++ netpbm-10.75.1/lib/libpammap.c 2016-08-22 16:07:01.001481732 +0200 @@ -108,6 +108,8 @@ allocTupleIntListItem(struct pam * const */ struct tupleint_list_item * retval; + overflow2(pamP->depth, sizeof(sample)); + overflow_add(sizeof(*retval)-sizeof(retval->tupleint.tuple), pamP->depth*sizeof(sample)); unsigned int const size = sizeof(*retval) - sizeof(retval->tupleint.tuple) + pamP->depth * sizeof(sample); Index: netpbm-10.75.1/lib/libpbm1.c =================================================================== --- netpbm-10.75.1.orig/lib/libpbm1.c 2016-08-22 11:03:31.117776279 +0200 +++ netpbm-10.75.1/lib/libpbm1.c 2016-08-22 16:07:01.001481732 +0200 @@ -79,6 +79,7 @@ pbm_check(FILE * const fil } else { pm_filepos const bytesPerRow = (cols+7)/8; pm_filepos const needRasterSize = rows * bytesPerRow; + overflow2(bytesPerRow, rows); pm_check(fileP, checkType, needRasterSize, retvalP); } } Index: netpbm-10.75.1/lib/libpm.c =================================================================== --- netpbm-10.75.1.orig/lib/libpm.c 2016-08-22 16:07:00.973481255 +0200 +++ netpbm-10.75.1/lib/libpm.c 2016-08-22 16:07:01.001481732 +0200 @@ -844,4 +844,53 @@ pm_parse_height(const char * const arg) } +/* + * Maths wrapping + */ + +void __overflow2(int a, int b) +{ + if(a < 0 || b < 0) + pm_error("object too large"); + if(b == 0) + return; + if(a > INT_MAX / b) + pm_error("object too large"); +} + +void overflow3(int a, int b, int c) +{ + overflow2(a,b); + overflow2(a*b, c); +} + +void overflow_add(int a, int b) +{ + if( a > INT_MAX - b) + pm_error("object too large"); +} + +void *malloc2(int a, int b) +{ + overflow2(a, b); + if(a*b == 0) + pm_error("Zero byte allocation"); + return malloc(a*b); +} + +void *malloc3(int a, int b, int c) +{ + overflow3(a, b, c); + if(a*b*c == 0) + pm_error("Zero byte allocation"); + return malloc(a*b*c); +} + +void *realloc2(void * a, int b, int c) +{ + overflow2(b, c); + if(b*c == 0) + pm_error("Zero byte allocation"); + return realloc(a, b*c); +} Index: netpbm-10.75.1/lib/pm.h =================================================================== --- netpbm-10.75.1.orig/lib/pm.h 2016-08-22 11:03:31.117776279 +0200 +++ netpbm-10.75.1/lib/pm.h 2016-08-22 16:07:01.001481732 +0200 @@ -435,4 +435,11 @@ pm_parse_height(const char * const arg); #endif +void *malloc2(int, int); +void *malloc3(int, int, int); +#define overflow2(a,b) __overflow2(a,b) +void __overflow2(int, int); +void overflow3(int, int, int); +void overflow_add(int, int); + #endif Index: netpbm-10.75.1/other/pnmcolormap.c =================================================================== --- netpbm-10.75.1.orig/other/pnmcolormap.c 2016-08-22 11:03:30.045758399 +0200 +++ netpbm-10.75.1/other/pnmcolormap.c 2016-08-22 16:07:01.001481732 +0200 @@ -840,6 +840,7 @@ colormapToSquare(struct pam * const pamP pamP->width = intsqrt; else pamP->width = intsqrt + 1; + overflow_add(intsqrt, 1); } { unsigned int const intQuotient = colormap.size / pamP->width; Index: netpbm-10.75.1/urt/README =================================================================== --- netpbm-10.75.1.orig/urt/README 2016-08-22 11:03:33.521816378 +0200 +++ netpbm-10.75.1/urt/README 2016-08-22 16:07:01.001481732 +0200 @@ -18,3 +18,8 @@ in its initializer in the original. But defines stdout as a variable, so that wouldn't compile. So I changed it to NULL and added a line to rle_hdr_init to set that field to 'stdout' dynamically. 2000.06.02 BJH. + +Redid the code to check for maths overflows and other crawly horrors. +Removed pipe through and compress support (unsafe) + +Alan Cox <alan@redhat.com> Index: netpbm-10.75.1/urt/rle_addhist.c =================================================================== --- netpbm-10.75.1.orig/urt/rle_addhist.c 2016-08-22 11:03:33.525816446 +0200 +++ netpbm-10.75.1/urt/rle_addhist.c 2016-08-22 16:07:01.001481732 +0200 @@ -14,6 +14,8 @@ * If you modify this software, you should include a notice giving the * name of the person performing the modification, the date of modification, * and the reason for such modification. + * + * 2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com> */ /* * rle_addhist.c - Add to the HISTORY comment in header @@ -70,13 +72,19 @@ rle_addhist(char * argv[], return; length = 0; - for (i = 0; argv[i]; ++i) + for (i = 0; argv[i]; ++i) { + overflow_add(length, strlen(argv[i])); + overflow_add(length+1, strlen(argv[i])); length += strlen(argv[i]) +1; /* length of each arg plus space. */ + } time(&temp); timedate = ctime(&temp); length += strlen(timedate); /* length of date and time in ASCII. */ + overflow_add(strlen(padding), 4); + overflow_add(strlen(histoire), strlen(padding) + 4); + overflow_add(length, strlen(histoire) + strlen(padding) + 4); length += strlen(padding) + 3 + strlen(histoire) + 1; /* length of padding, "on " and length of history name plus "="*/ if (in_hdr) /* if we are interested in the old comments... */ @@ -84,9 +92,12 @@ rle_addhist(char * argv[], else old = NULL; - if (old && *old) + if (old && *old) { + overflow_add(length, strlen(old)); length += strlen(old); /* add length if there. */ + } + overflow_add(length, 1); ++length; /*Cater for the null. */ MALLOCARRAY(newc, length); Index: netpbm-10.75.1/urt/rle_getrow.c =================================================================== --- netpbm-10.75.1.orig/urt/rle_getrow.c 2016-08-22 11:03:33.521816378 +0200 +++ netpbm-10.75.1/urt/rle_getrow.c 2016-08-22 16:07:01.001481732 +0200 @@ -17,6 +17,8 @@ * * Modified at BRL 16-May-88 by Mike Muuss to avoid Alliant STDC desire * to have all "void" functions so declared. + * + * 2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com> */ /* * rle_getrow.c - Read an RLE file in. @@ -160,6 +162,7 @@ rle_get_setup(rle_hdr * const the_hdr) { char * cp; VAXSHORT(comlen, infile); /* get comment length */ + overflow_add(comlen, 1); evenlen = (comlen + 1) & ~1; /* make it even */ if (evenlen) { MALLOCARRAY(comment_buf, evenlen); Index: netpbm-10.75.1/urt/rle_hdr.c =================================================================== --- netpbm-10.75.1.orig/urt/rle_hdr.c 2016-08-22 11:03:33.525816446 +0200 +++ netpbm-10.75.1/urt/rle_hdr.c 2016-08-22 16:07:01.001481732 +0200 @@ -14,6 +14,8 @@ * If you modify this software, you should include a notice giving the * name of the person performing the modification, the date of modification, * and the reason for such modification. + * + * 2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com> */ /* * rle_hdr.c - Functions to manipulate rle_hdr structures. @@ -80,7 +82,10 @@ int img_num; /* Fill in with copies of the strings. */ if ( the_hdr->cmd != pgmname ) { - char *tmp = (char *)malloc( strlen( pgmname ) + 1 ); + char *tmp ; + + overflow_add(strlen(pgmname), 1); + tmp = malloc( strlen( pgmname ) + 1 ); RLE_CHECK_ALLOC( pgmname, tmp, 0 ); strcpy( tmp, pgmname ); the_hdr->cmd = tmp; @@ -88,7 +93,9 @@ int img_num; if ( the_hdr->file_name != fname ) { - char *tmp = (char *)malloc( strlen( fname ) + 1 ); + char *tmp; + overflow_add(strlen(fname), 1); + tmp = malloc( strlen( fname ) + 1 ); RLE_CHECK_ALLOC( pgmname, tmp, 0 ); strcpy( tmp, fname ); the_hdr->file_name = tmp; @@ -153,6 +160,7 @@ rle_hdr *from_hdr, *to_hdr; if ( to_hdr->bg_color ) { int size = to_hdr->ncolors * sizeof(int); + overflow2(to_hdr->ncolors, sizeof(int)); to_hdr->bg_color = (int *)malloc( size ); RLE_CHECK_ALLOC( to_hdr->cmd, to_hdr->bg_color, "background color" ); memcpy( to_hdr->bg_color, from_hdr->bg_color, size ); @@ -161,7 +169,7 @@ rle_hdr *from_hdr, *to_hdr; if ( to_hdr->cmap ) { int size = to_hdr->ncmap * (1 << to_hdr->cmaplen) * sizeof(rle_map); - to_hdr->cmap = (rle_map *)malloc( size ); + to_hdr->cmap = (rle_map *)malloc3( to_hdr->ncmap, 1<<to_hdr->cmaplen, sizeof(rle_map)); RLE_CHECK_ALLOC( to_hdr->cmd, to_hdr->cmap, "color map" ); memcpy( to_hdr->cmap, from_hdr->cmap, size ); } @@ -174,11 +182,16 @@ rle_hdr *from_hdr, *to_hdr; int size = 0; CONST_DECL char **cp; for ( cp=to_hdr->comments; *cp; cp++ ) + { + overflow_add(size, 1); size++; /* Count the comments. */ + } /* Check if there are really any comments. */ if ( size ) { + overflow_add(size, 1); size++; /* Copy the NULL pointer, too. */ + overflow2(size, sizeof(char *)); size *= sizeof(char *); to_hdr->comments = (CONST_DECL char **)malloc( size ); RLE_CHECK_ALLOC( to_hdr->cmd, to_hdr->comments, "comments" ); Index: netpbm-10.75.1/urt/rle.h =================================================================== --- netpbm-10.75.1.orig/urt/rle.h 2016-08-22 11:03:33.525816446 +0200 +++ netpbm-10.75.1/urt/rle.h 2016-08-22 16:07:01.001481732 +0200 @@ -14,6 +14,9 @@ * If you modify this software, you should include a notice giving the * name of the person performing the modification, the date of modification, * and the reason for such modification. + * + * 2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com> + * Header declarations needed */ /* * rle.h - Global declarations for Utah Raster Toolkit RLE programs. @@ -160,6 +163,17 @@ rle_hdr /* End of typedef. * */ extern rle_hdr rle_dflt_hdr; +/* + * Provided by pm library + */ + +extern void overflow_add(int, int); +#define overflow2(a,b) __overflow2(a,b) +extern void __overflow2(int, int); +extern void overflow3(int, int, int); +extern void *malloc2(int, int); +extern void *malloc3(int, int, int); +extern void *realloc2(void *, int, int); /* Declare RLE library routines. */ Index: netpbm-10.75.1/urt/rle_open_f.c =================================================================== --- netpbm-10.75.1.orig/urt/rle_open_f.c 2016-08-22 11:03:33.521816378 +0200 +++ netpbm-10.75.1/urt/rle_open_f.c 2016-08-22 16:07:01.001481732 +0200 @@ -163,65 +163,7 @@ dealWithSubprocess(const char * const f FILE ** const fpP, bool * const noSubprocessP, const char ** const errorP) { - -#ifdef NO_OPEN_PIPES *noSubprocessP = TRUE; -#else - const char *cp; - - reapChildren(catchingChildrenP, pids); - - /* Real file, not stdin or stdout. If name ends in ".Z", - * pipe from/to un/compress (depending on r/w mode). - * - * If it starts with "|", popen that command. - */ - - cp = file_name + strlen(file_name) - 2; - /* Pipe case. */ - if (file_name[0] == '|') { - pid_t thepid; /* PID from my_popen */ - - *noSubprocessP = FALSE; - - *fpP = my_popen(file_name + 1, mode, &thepid); - if (*fpP == NULL) - *errorP = "%s: can't invoke <<%s>> for %s: "; - else { - /* One more child to catch, eventually. */ - if (*catchingChildrenP < MAX_CHILDREN) - pids[(*catchingChildrenP)++] = thepid; - } - } else if (cp > file_name && *cp == '.' && *(cp + 1) == 'Z' ) { - /* Compress case. */ - pid_t thepid; /* PID from my_popen. */ - const char * command; - - *noSubprocessP = FALSE; - - if (*mode == 'w') - pm_asprintf(&command, "compress > %s", file_name); - else if (*mode == 'a') - pm_asprintf(&command, "compress >> %s", file_name); - else - pm_asprintf(&command, "compress -d < %s", file_name); - - *fpP = my_popen(command, mode, &thepid); - - if (*fpP == NULL) - *errorP = "%s: can't invoke 'compress' program, " - "trying to open %s for %s"; - else { - /* One more child to catch, eventually. */ - if (*catchingChildrenP < MAX_CHILDREN) - pids[(*catchingChildrenP)++] = thepid; - } - pm_strfree(command); - } else { - *noSubprocessP = TRUE; - *errorP = NULL; - } -#endif } Index: netpbm-10.75.1/urt/rle_putcom.c =================================================================== --- netpbm-10.75.1.orig/urt/rle_putcom.c 2016-08-22 11:03:33.521816378 +0200 +++ netpbm-10.75.1/urt/rle_putcom.c 2016-08-22 16:07:01.001481732 +0200 @@ -14,6 +14,8 @@ * If you modify this software, you should include a notice giving the * name of the person performing the modification, the date of modification, * and the reason for such modification. + * + * 2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com> */ /* * rle_putcom.c - Add a picture comment to the header struct. @@ -98,12 +100,14 @@ rle_putcom(const char * const value, const char * v; const char ** old_comments; int i; - for (i = 2, cp = the_hdr->comments; *cp != NULL; ++i, ++cp) + for (i = 2, cp = the_hdr->comments; *cp != NULL; ++i, ++cp) { + overflow_add(i, 1); if (match(value, *cp) != NULL) { v = *cp; *cp = value; return v; } + } /* Not found */ /* Can't realloc because somebody else might be pointing to this * comments block. Of course, if this were true, then the Index: netpbm-10.75.1/urt/Runput.c =================================================================== --- netpbm-10.75.1.orig/urt/Runput.c 2016-08-22 11:03:33.525816446 +0200 +++ netpbm-10.75.1/urt/Runput.c 2016-08-22 16:07:01.001481732 +0200 @@ -17,6 +17,8 @@ * * Modified at BRL 16-May-88 by Mike Muuss to avoid Alliant STDC desire * to have all "void" functions so declared. + * + * 2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com> */ /* * Runput.c - General purpose Run Length Encoding. @@ -202,9 +204,11 @@ RunSetup(rle_hdr * the_hdr) if ( the_hdr->background != 0 ) { register int i; - register rle_pixel *background = - (rle_pixel *)malloc( (unsigned)(the_hdr->ncolors + 1) ); + register rle_pixel *background; register int *bg_color; + + overflow_add(the_hdr->ncolors,1); + background = (rle_pixel *)malloc( (unsigned)(the_hdr->ncolors + 1) ); /* * If even number of bg color bytes, put out one more to get to * 16 bit boundary. @@ -224,7 +228,7 @@ RunSetup(rle_hdr * the_hdr) /* Big-endian machines are harder */ register int i, nmap = (1 << the_hdr->cmaplen) * the_hdr->ncmap; - register char *h_cmap = (char *)malloc( nmap * 2 ); + register char *h_cmap = (char *)malloc2( nmap, 2 ); if ( h_cmap == NULL ) { fprintf( stderr, Index: netpbm-10.75.1/urt/scanargs.c =================================================================== --- netpbm-10.75.1.orig/urt/scanargs.c 2016-08-22 11:03:33.521816378 +0200 +++ netpbm-10.75.1/urt/scanargs.c 2016-08-22 16:07:01.001481732 +0200 @@ -38,6 +38,8 @@ * * Modified at BRL 16-May-88 by Mike Muuss to avoid Alliant STDC desire * to have all "void" functions so declared. + * + * 2002-12-19: Fix maths wrapping bugs. Alan Cox <alan@redhat.com> */ #include <stdio.h> @@ -62,8 +64,8 @@ typedef int *ptr; /* * Storage allocation macros */ -#define NEW( type, cnt ) (type *) malloc( (cnt) * sizeof( type ) ) -#define RENEW( type, ptr, cnt ) (type *) realloc( ptr, (cnt) * sizeof( type ) ) +#define NEW( type, cnt ) (type *) malloc2( (cnt) , sizeof( type ) ) +#define RENEW( type, ptr, cnt ) (type *) realloc2( ptr, (cnt), sizeof( type ) ) static CONST_DECL char * prformat( CONST_DECL char *, int ); static int isnum( CONST_DECL char *, int, int );
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