SQLite versions prior to 3.53.2 contain memory corruption vulnerabilities in the FTS5 full-text search extension. These vulnerabilities allow attackers to cause process crashes, memory exhaustion, or arbitrary code execution by using a crafted database with malformed FTS5 page data. The flaws include an out-of-bounds read in the fts5LeafSeek() function and a heap buffer overflow write in fts5ChunkIterate(), triggered during execution of an FTS5 MATCH query against malicious data. A fix is available in version 3.53.2.