In SQLite 3.27.2, interleaving reads and writes in a single transaction with an fts5 virtual table will lead to a NULL Pointer Dereference in fts5ChunkIterate in sqlite3.c. This is related to ext/fts5/fts5_hash.c and ext/fts5/fts5_index.c.
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Sqlite | Sqlite | 3.27.2 (including) | 3.27.2 (including) |
| Sqlite3 | Ubuntu | bionic | * |
| Sqlite3 | Ubuntu | cosmic | * |
| Sqlite3 | Ubuntu | trusty | * |
| Sqlite3 | Ubuntu | upstream | * |
| Sqlite3 | Ubuntu | xenial | * |