- CVE-2021-45444: Fixed a vulnerability where arbitrary shell commands could be executed related to prompt expansion (bsc#1196435). - CVE-2019-20044: Fixed a vulnerability where shell privileges would not be properly dropped when unsetting the PRIVILEGED option (bsc#1163882). - CVE-2018-1100: Fixed a potential code execution via a stack-based buffer overflow in utils.c:checkmailpath() (bsc#1089030).