CLSA-2022-1669309294 Fix CVE(s): CVE-2022-1674, CVE-2022-1725, CVE-2022-3352

SECURITY UPDATE: Use After Free in vim - debian/patches/CVE-2022-3352.patch: Disallow deleting the current buffer to avoid using freed memory - CVE-2022-3352 SECURITY UPDATE: Crash when matching buffer with invalid pattern - debian/patches/CVE-2022-1674.patch: Check for NULL regprog - CVE-2022-16...