The TIFFFetchShortPair function in tif_dirread.c in libtiff 3.8.0 allows remote attackers to cause a denial of service (application crash) via a crafted TIFF image that triggers a NULL pointer dereference, possibly due to changes in type declarations and/or the TIFFVSetField function.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24275
http://www.vupen.com/english/advisories/2006/0302
http://www.securityfocus.com/bid/18172
http://www.gentoo.org/security/en/glsa/glsa-200605-17.xml
http://secunia.com/advisories/20345
http://secunia.com/advisories/18587