diff options
Diffstat (limited to 'main/tiff/libtiff-CVE-2013-1960.patch')
| -rw-r--r-- | main/tiff/libtiff-CVE-2013-1960.patch | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/main/tiff/libtiff-CVE-2013-1960.patch b/main/tiff/libtiff-CVE-2013-1960.patch new file mode 100644 index 00000000000..1c8dfb7bc65 --- /dev/null +++ b/main/tiff/libtiff-CVE-2013-1960.patch @@ -0,0 +1,145 @@ +diff -Naur tiff-4.0.3.orig/tools/tiff2pdf.c tiff-4.0.3/tools/tiff2pdf.c +--- tiff-4.0.3.orig/tools/tiff2pdf.c 2012-07-25 22:56:43.000000000 -0400 ++++ tiff-4.0.3/tools/tiff2pdf.c 2013-05-02 12:04:49.057090227 -0400 +@@ -3341,33 +3341,56 @@ + uint32 height){ + + tsize_t i=0; +- uint16 ri =0; +- uint16 v_samp=1; +- uint16 h_samp=1; +- int j=0; +- +- i++; +- +- while(i<(*striplength)){ ++ ++ while (i < *striplength) { ++ tsize_t datalen; ++ uint16 ri; ++ uint16 v_samp; ++ uint16 h_samp; ++ int j; ++ int ncomp; ++ ++ /* marker header: one or more FFs */ ++ if (strip[i] != 0xff) ++ return(0); ++ i++; ++ while (i < *striplength && strip[i] == 0xff) ++ i++; ++ if (i >= *striplength) ++ return(0); ++ /* SOI is the only pre-SOS marker without a length word */ ++ if (strip[i] == 0xd8) ++ datalen = 0; ++ else { ++ if ((*striplength - i) <= 2) ++ return(0); ++ datalen = (strip[i+1] << 8) | strip[i+2]; ++ if (datalen < 2 || datalen >= (*striplength - i)) ++ return(0); ++ } + switch( strip[i] ){ +- case 0xd8: +- /* SOI - start of image */ ++ case 0xd8: /* SOI - start of image */ + _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), 2); + *bufferoffset+=2; +- i+=2; + break; +- case 0xc0: +- case 0xc1: +- case 0xc3: +- case 0xc9: +- case 0xca: ++ case 0xc0: /* SOF0 */ ++ case 0xc1: /* SOF1 */ ++ case 0xc3: /* SOF3 */ ++ case 0xc9: /* SOF9 */ ++ case 0xca: /* SOF10 */ + if(no==0){ +- _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), strip[i+2]+2); +- for(j=0;j<buffer[*bufferoffset+9];j++){ +- if( (buffer[*bufferoffset+11+(2*j)]>>4) > h_samp) +- h_samp = (buffer[*bufferoffset+11+(2*j)]>>4); +- if( (buffer[*bufferoffset+11+(2*j)] & 0x0f) > v_samp) +- v_samp = (buffer[*bufferoffset+11+(2*j)] & 0x0f); ++ _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2); ++ ncomp = buffer[*bufferoffset+9]; ++ if (ncomp < 1 || ncomp > 4) ++ return(0); ++ v_samp=1; ++ h_samp=1; ++ for(j=0;j<ncomp;j++){ ++ uint16 samp = buffer[*bufferoffset+11+(3*j)]; ++ if( (samp>>4) > h_samp) ++ h_samp = (samp>>4); ++ if( (samp & 0x0f) > v_samp) ++ v_samp = (samp & 0x0f); + } + v_samp*=8; + h_samp*=8; +@@ -3381,45 +3404,43 @@ + (unsigned char) ((height>>8) & 0xff); + buffer[*bufferoffset+6]= + (unsigned char) (height & 0xff); +- *bufferoffset+=strip[i+2]+2; +- i+=strip[i+2]+2; +- ++ *bufferoffset+=datalen+2; ++ /* insert a DRI marker */ + buffer[(*bufferoffset)++]=0xff; + buffer[(*bufferoffset)++]=0xdd; + buffer[(*bufferoffset)++]=0x00; + buffer[(*bufferoffset)++]=0x04; + buffer[(*bufferoffset)++]=(ri >> 8) & 0xff; + buffer[(*bufferoffset)++]= ri & 0xff; +- } else { +- i+=strip[i+2]+2; + } + break; +- case 0xc4: +- case 0xdb: +- _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), strip[i+2]+2); +- *bufferoffset+=strip[i+2]+2; +- i+=strip[i+2]+2; ++ case 0xc4: /* DHT */ ++ case 0xdb: /* DQT */ ++ _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2); ++ *bufferoffset+=datalen+2; + break; +- case 0xda: ++ case 0xda: /* SOS */ + if(no==0){ +- _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), strip[i+2]+2); +- *bufferoffset+=strip[i+2]+2; +- i+=strip[i+2]+2; ++ _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), datalen+2); ++ *bufferoffset+=datalen+2; + } else { + buffer[(*bufferoffset)++]=0xff; + buffer[(*bufferoffset)++]= + (unsigned char)(0xd0 | ((no-1)%8)); +- i+=strip[i+2]+2; + } +- _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i-1]), (*striplength)-i-1); +- *bufferoffset+=(*striplength)-i-1; ++ i += datalen + 1; ++ /* copy remainder of strip */ ++ _TIFFmemcpy(&(buffer[*bufferoffset]), &(strip[i]), *striplength - i); ++ *bufferoffset+= *striplength - i; + return(1); + default: +- i+=strip[i+2]+2; ++ /* ignore any other marker */ ++ break; + } ++ i += datalen + 1; + } +- + ++ /* failed to find SOS marker */ + return(0); + } + #endif |