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tiff2pdf: palette bound check in t2p_sample_realize_palette()

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fixes #82
This commit is contained in:
Thomas Bernard 2020-02-08 13:27:51 +01:00
parent 3334704ebc
commit 3107393354
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GPG Key ID: 0FF11B67A5C0863C
1 changed files with 5 additions and 0 deletions
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5
tools/tiff2pdf.c
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@ -3731,6 +3731,11 @@ tsize_t t2p_sample_realize_palette(T2P* t2p, unsigned char* buffer){
for(i=sample_count;i>0;i--){
palette_offset=buffer[i-1] * component_count;
sample_offset= (i-1) * component_count;
if(palette_offset + component_count > t2p->pdf_palettesize){
TIFFError(TIFF2PDF_MODULE,
"Error: palette_offset + component_count > t2p->pdf_palettesize");
return 1;
}
for(j=0;j<component_count;j++){
buffer[sample_offset+j]=t2p->pdf_palette[palette_offset+j];
}