Andreas Metzler uploaded new packages for exim4 which fixed the following security problems:
CVE-2010-4345 exim privilege escalation Exim 4.72 and earlier allows local users to gain privileges by leveraging the ability of the exim user account to specify an alternate configuration file with a directive that contains arbitrary commands, as demonstrated by the spool_directory directive.
For the lenny-backports distribution the problem has been fixed in version 4.72-3~bpo50+1.
For the stable distribution (lenny), this problem will be fixed in version 4.69-9+lenny2.
For the upcoming stable version (squeeze) and the unstable distribution (sid), this problems has been fixed in version 4.72-3.
For the experimental distribution, these problems have been fixed in version 4.73~rc1-1.
If you don't use pinning (see ) you have to update the package manually via "apt-get -t lenny-backports install <packagelist>" with the packagelist of your installed packages affected by this update.  <http://backports.debian.org/Instructions>
We recommend to pin (in /etc/apt/preferences) the backports repository to 200 so that new versions of installed backports will be installed automatically.
Package: * Pin: release a=lenny-backports Pin-Priority: 200