The fts3_tokenizer function in SQLite, as used in Apple iOS before 8.4 and OS X before 10.10.4, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a SQL command that triggers an API call with a crafted pointer value in the second argument.
https://security.gentoo.org/glsa/201612-21
http://zerodayinitiative.com/advisories/ZDI-15-570/