ImageMagick fails to load TIFF
Posted: 2011-10-28T16:27:29-07:00
Hi all,
There seems to be a bug in the TIFF EXIF handling in ImageMagick 6.7.3-2. The TIFFGetEXIFProperties function holds the offset variable in a uint32, but the TIFF format seems to support up to 64 bits data.
From tiff.c...
Now, where offset actually gets populated in tif_dir.c...
There seems to be a bug in the TIFF EXIF handling in ImageMagick 6.7.3-2. The TIFFGetEXIFProperties function holds the offset variable in a uint32, but the TIFF format seems to support up to 64 bits data.
From tiff.c...
Code: Select all
static void TIFFGetEXIFProperties(TIFF *tiff,Image *image)
{
// ...
uint32
offset;
// ...
if (TIFFGetField(tiff,TIFFTAG_EXIFIFD,&offset) == 0)
return;
// ...
}
Code: Select all
static int _TIFFVGetField(TIFF* tif, uint32 tag, va_list ap)
{
// ...
switch (fip->field_type) {
// other cases...
case TIFF_LONG8:
case TIFF_IFD8:
*va_arg(ap, uint64*) =
*(uint64 *)val;
ret_val = 1;
break;
// other cases...
}
// ...
}