Heap-based Buffer Over-read Vulnerability in SQLite 3.27.2's fts5HashEntrySort Function

CVE-2019-9936 · MEDIUM Severity

AV:N/AC:L/AU:N/C:P/I:N/A:N

In SQLite 3.27.2, running fts5 prefix queries inside a transaction could trigger a heap-based buffer over-read in fts5HashEntrySort in sqlite3.c, which may lead to an information leak. This is related to ext/fts5/fts5_hash.c.

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