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[Backports-security-announce] Security Update for dovecot

Gerfried Fuchs uploaded new packages for dovecot which fixed the
following security problems:

CVE-2008-4577, Debian Bug #502967

  The ACL plugin in Dovecot before 1.1.4 treats negative access rights
  as if they are positive access rights, which allows attackers to
  bypass intended access restrictions. 

Debian Bug #506031

  A flaw in the handling of script names in ManageSieve offered the
  posibility to read and edit script files of other virtual users with
  the same system uid.

For the etch-backports distribution the problems have been fixed in
version 1.0.15-2.3~bpo40+1.

For the lenny and sid distributions the problems have been fixed in
version 1.0.15-2.3.

Upgrade instructions

If you don't use pinning (see [1]) you have to update the packages
manually via "apt-get -t etch-backports install <packagelist>" with the
packagelist of your installed packages affected by this update.
[1] <http://backports.org/dokuwiki/doku.php?id=instructions>

We recommend to pin the backports repository to 200 so that new versions
of installed  backports will be installed automatically:

  Package: *
  Pin: release a=etch-backports
  Pin-Priority: 200

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