Avoid a heap buffer overflow in pdb file handling. CVE assignment: http://seclists.org/oss-sec/2016/q2/459 Upstream patch: https://anonscm.debian.org/cgit/collab-maint/imagemagick.git/commit/?h=debian-patches/6.8.9.9-4-for-upstream&id=e24de96ab25b396ae914a7640ff4d61e58c40cf0