Secure testing team - Jul 2012 - Bug#680614: mixmaster: The permission of the setuid helper is not correct

Package: mixmaster
Version: 3.0.0-4.1
Severity: serious
Tags: security
Justification: 3

Dear Maintainer,

In updating my Debian testing system, I encountered this error from 
dpkg: 

$ sudo apt-get remove mixmaster
[snip]
dpkg: error processing mixmaster (--remove):
 Package is in a very bad inconsistent state - you should
 reinstall it before attempting a removal.
Errors were encountered while processing:
 mixmaster
Error: GDBus.Error:org.freedesktop.DBus.Error.Spawn.PermissionsInvalid: The
permission of the setuid helper is not correct
E: Sub-process /usr/bin/dpkg returned an error code (1)


-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, ''unstable''), (1,
''experimental'')
Architecture: i386 (i686)

Kernel: Linux 3.2.0-2-686-pae (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL
set to en_US.UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages mixmaster depends on:
ii  adduser                3.113+nmu3
ii  debconf [debconf-2.0]  1.5.45
ii  libc6                  2.13-34
ii  libmailtools-perl      2.09-1
ii  libncurses5            5.9-10
ii  libpcre3               1:8.30-5
ii  libssl1.0.0            1.0.1c-3
ii  libtinfo5              5.9-10
ii  libwww-perl            6.04-1
ii  zlib1g                 1:1.2.7.dfsg-13

Versions of packages mixmaster recommends:
ii  exim4-daemon-light [mail-transport-agent]  4.80-4

Versions of packages mixmaster suggests:
ii  mutt  1.5.21-6

-- Configuration Files:
/etc/mixmaster/remailer.conf [Errno 13] Permission denied:
u''/etc/mixmaster/remailer.conf''

-- debconf information:
  mixmaster/stats-update: false