The OJPEGReadBufferFill function in tif_ojpeg.c in LibTIFF before 3.9.3 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an OJPEG image with undefined strip offsets, related to the TIFFVGetField function.
https://bugs.launchpad.net/ubuntu/lucid/+source/tiff/+bug/589145
http://www.vupen.com/english/advisories/2011/0204
http://www.remotesensing.org/libtiff/v3.9.3.html
http://security.gentoo.org/glsa/glsa-201209-02.xml
http://secunia.com/advisories/50726
http://marc.info/?l=oss-security&m=127781315415896&w=2