Package: cron
Version: 3.0pl1-127+deb8u1
Severity: normal
Tags: patch
Dear Maintainer,
when sending command outputs via email, cron will use at least one MIME
header(Content-Type, wether the user configured CONTENT_TYPE or not),
but will not set the "MIME-Version" header as required by the MIME RFC.
The bug might occur when strict email systems will refuse to interpret
the Content-Type header when MIME-Version is not set, as I juste
encountered when the target email is a Mailman list. For instance a
source utf-8 text with proper Content-Type (text/plain; charset= utf8)
is mangled when run through Mailman (considered as ASCII and rendered as
garbage).
The patch is pretty trivial: always add a "MIME-Version: 1.0" header.
--- do_command.c.orig 2016-01-15 13:24:09.486709632 +0100
+++ do_command.c 2016-01-15 13:07:26.594685734 +0100
@@ -567,6 +567,7 @@
fprintf(mail, "Date: %s\n",
arpadate(&StartTime));
# endif /* MAIL_DATE */
+ fprintf(mail, "MIME-Version: 1.0\n");
if ( content_type == 0L ) {
fprintf(mail, "Content-Type: text/plain; charset=%s\n",
cron_default_mail_charset
I've tested it and it fixes the problem.
-- Package-specific info:
--- EDITOR:
not set
--- /usr/bin/editor:
/bin/nano
--- /usr/bin/crontab:
-rwxr-sr-x 1 root crontab 36008 Jun 11 2015 /usr/bin/crontab
--- /var/spool/cron:
drwxr-xr-x 5 root root 4096 Sep 23 2014 /var/spool/cron
--- /var/spool/cron/crontabs:
drwx-wx--T 2 root crontab 4096 Aug 9 2014 /var/spool/cron/crontabs
--- /etc/cron.d:
drwxr-xr-x 2 root root 4096 Dec 7 10:18 /etc/cron.d
--- /etc/cron.daily:
drwxr-xr-x 2 root root 4096 Dec 7 10:16 /etc/cron.daily
--- /etc/cron.hourly:
drwxr-xr-x 2 root root 4096 Sep 5 15:55 /etc/cron.hourly
--- /etc/cron.monthly:
drwxr-xr-x 2 root root 4096 Sep 11 15:49 /etc/cron.monthly
--- /etc/cron.weekly:
drwxr-xr-x 2 root root 4096 Sep 5 15:55 /etc/cron.weekly
-- System Information:
Debian Release: 8.2
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages cron depends on:
ii adduser 3.113+nmu3
ii debianutils 4.4+b1
ii dpkg 1.17.26
ii init-system-helpers 1.22
ii libc6 2.19-18+deb8u1
ii libpam-runtime 1.1.8-3.1
ii libpam0g 1.1.8-3.1
ii libselinux1 2.3-2
ii lsb-base 4.1+Debian13+nmu1
Versions of packages cron recommends:
ii postfix [mail-transport-agent] 2.11.3-1
Versions of packages cron suggests:
ii anacron 2.3-23
pn checksecurity <none>
ii logrotate 3.8.7-1+b1
Versions of packages cron is related to:
pn libnss-ldap <none>
pn libnss-ldapd <none>
pn libpam-ldap <none>
pn libpam-mount <none>
pn nis <none>
pn nscd <none>
-- no debconf information
