A vulnerability was found in the libtiff library. Using a tiffset command on a maliciously crafted image could result in a denial-of-service.

Vulnerable code:

/libtiff/tif_dirwrite.c: 1625
1623    for (q=p, ma=value, mb=0; mb<count; ma++, mb++, q++)
1624    {
1625        if (*ma>0xFFFFFFFF)
1626        {
1627            TIFFErrorExt(tif->tif_clientdata,module,
1628                         "Attempt to write value larger than 0xFFFFFFFF in Classic TIFF file.");
1629            _TIFFfree(p);
1630            return(0);
1631        }
1632        *q= (uint32)(*ma);
1633       }

References:

http://www.openwall.com/lists/oss-security/2016/04/08/12