Package: postfix Version: 3.2.4-1 Severity: normal check out these permissions:
0 root@alice:~# ls -la /etc/systemd/system/postfix.service.d/override.conf -rw------- 1 root root 66 Jan 23 2017 /etc/systemd/system/postfix.service.d/override.conf 0 root@alice:~# and yet, there is nothing secret in the file: 0 root@alice:~# cat /etc/systemd/system/postfix.service.d/override.conf [Unit] After=network-online.target After=systemd-resolved.service 0 root@alice:~# shouldn't this file be created in mode 0644? no other override.conf files are unreadable by "other" on this system. --dkg -- System Information: Debian Release: buster/sid APT prefers testing-debug APT policy: (500, 'testing-debug'), (500, 'testing'), (500, 'oldstable'), (200, 'unstable-debug'), (200, 'unstable'), (1, 'experimental-debug'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.14.0-3-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages postfix depends on: ii adduser 3.116 ii cpio 2.12+dfsg-6 ii debconf [debconf-2.0] 1.5.65 ii dpkg 1.19.0.5 ii libc6 2.26-4 ii libdb5.3 5.3.28-13.1+b1 ii libicu57 57.1-8 ii libsasl2-2 2.1.27~101-g0780600+dfsg-3 ii libssl1.1 1.1.0g-2 ii lsb-base 9.20170808 ii netbase 5.4 ii ssl-cert 1.0.39 Versions of packages postfix recommends: ii python3 3.6.4-1 Versions of packages postfix suggests: ii claws-mail [mail-reader] 3.16.0-1 ii dovecot-core [dovecot-common] 1:2.2.33.2-1 ii emacs25 [mail-reader] 25.2+1-6 ii heirloom-mailx [mail-reader] 12.5-4 ii libsasl2-modules 2.1.27~101-g0780600+dfsg-3 ii mailutils [mail-reader] 1:3.4-1 ii nmh [mail-reader] 1.7-2 pn postfix-cdb <none> pn postfix-doc <none> pn postfix-ldap <none> pn postfix-lmdb <none> pn postfix-mysql <none> pn postfix-pcre <none> pn postfix-pgsql <none> ii postfix-sqlite 3.2.4-1 pn procmail <none> pn resolvconf <none> ii s-nail [mail-reader] 14.9.6-1 pn sasl2-bin <none> ii sylpheed [mail-reader] 3.6.0-1 ii thunderbird [mail-reader] 1:52.6.0-1 pn ufw <none> -- debconf information excluded