CLSA-2023-1688678110 Fix CVE(s): CVE-2021-33582

SECURITY UPDATE: String hashing algorithm collisions - debian/patches/0021-CVE-2021-33582-pre.patch: gracefully handle lookup on zero-sized tables - debian/patches/0022-CVE-2021-33582.patch: replace ad-hoc algorithm with seeded djb2 and use it when hashing - CVE-2021-33582 Enable the internal cun...