Preface: The virtual table is created in the same SQLite database in wich the Core Data content resides. To keep this table as light as possible only object properties relevant to the search query are inserted.
Vulnerability details: A vulnerability in the rtreenode() function of SQLite3 could allow an unauthenticated, remote attacker to access sensitive information .
Bug Fixed – When opening an existing rtree, determine the node size by inspecting the root node of the r-tree structure (instead of assuming it is a function of the page-size). SQLite has released a software update at the following link: https://www.sqlite.org/download.html