Re: CFD: eXIF 2017-0207
Phil Harvey <phil-CIeU6mJ2MbMd166Dz3SrqbDks+cytr/[email protected]> Sun, 12 Feb 2017 13:29:50 -0500
| Newsgroups | gmane.comp.graphics.png.general |
|---|---|
| Message-ID | <[email protected]> |
> On February 10, 2017 at 12:00:18 PM EST, John Bowler wrote: > > I've noticed that one of the JPEG samples (one of mine IRC) has an > EXIF tag which exiv2 reports as containing offsets outside the chunk. > I suspect this may be related to the other unusual practice of storing > a "preview" image after the EOI of the main (IFD[0]) image. Are you > aware of this? (Obviously it can happen in a maliciously generated > EXIF or TIFF, but it seems to be happening deliberately without real > malicious intent.) If you gave me a link to the sample I could take a look, but it is not uncommon to have preview pointers referencing data outside the EXIF segment. - Phil ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot