The Apple iWork application before 2.6 for iOS and Apple Pages before 5.6 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted Pages document.
https://support.apple.com/HT205373
http://www.securitytracker.com/id/1033821
http://lists.apple.com/archives/security-announce/2015/Oct/msg00000.html