selectExpander in select.c in SQLite 3.30.1 proceeds with WITH stack unwinding even after a parsing error.
https://www.oracle.com/security-alerts/cpuapr2020.html
https://usn.ubuntu.com/4298-1/
https://security.gentoo.org/glsa/202007-26
https://lists.debian.org/debian-lts-announce/2020/12/msg00016.html
https://lists.debian.org/debian-lts-announce/2020/08/msg00037.html
https://github.com/sqlite/sqlite/commit/a6c1a71cde082e09750465d5675699062922e387