sqlite: Division by zero in whereLoopAddBtreeIndex in sqlite3.c

In SQLite through 3.29.0, whereLoopAddBtreeIndex in sqlite3.c can crash a browser or other application because of missing validation of a sqlitestat1 sz field, aka a "severe division by zero in the query planner."...

The vulnerability of the whereLoopAddBtreeIndex function in the SQLite database management system allows a hacker to cause a service failure.

The vulnerability of the whereLoopAddBtreeIndex function in the SQLite database management system is related to division by zero. Exploiting this vulnerability can allow a malicious actor to cause service interruptions remotely...