Package: courier-base Version: 0.75.0-18 Severity: normal There are multiple bash scripts in the courier suite which explicitly call bash as their interpreter, thus bash should probably be a dependency in the suite somewhere.
Examples: /usr/sbin/esmtpd /usr/sbin/imapd -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.5.0-1-amd64 (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) Versions of packages courier-base depends on: ii adduser 3.114 ii courier-authdaemon 0.66.4-7 ii courier-authlib 0.66.4-7 ii courier-authlib-userdb 0.66.4-7 ii debconf [debconf-2.0] 1.5.59 ii libc6 2.22-7 ii libcourier-unicode1 1.4-2 ii libgamin0 [libfam0] 0.1.10-5 ii libgdbm3 1.8.3-13.1 ii libssl1.0.2 1.0.2g-1 ii lsb-base 9.20160110 ii openssl 1.0.2g-1 ii perl 5.22.1-10 ii sysvinit-utils 2.88dsf-59.3 courier-base recommends no packages. courier-base suggests no packages. -- Configuration Files: /etc/courier/shared/index [Errno 13] Permission denied: u'/etc/courier/shared/index' -- debconf information excluded