Bug#617810: exim4 postinst unconditionally trashes permissions of log dir

[Ian Jackson]

Package: exim4-base
Version: 4.69-9+lenny4
Tags: patch

I just did the exim4 security update and it reset the permissions of
my /var/log/exim4 to 600, due to this in the postinst:

        install -d -oDebian-exim -gadm -m2750 /var/log/exim4

On my system the policy is that the logs are supposed to be readable.
I suggest this patch, as a band-aid.

Ian.

--- /usr/src/exim4-4.69/debian/exim4-base.postinst~	2011-03-11 15:39:38.000000000 +0000
+++ /usr/src/exim4-4.69/debian/exim4-base.postinst	2011-03-11 15:45:36.000000000 +0000
@@ -20,6 +20,7 @@
 	fi
 	# Create directories for log etc
 	# install also fixes permissions.
+	test -d /var/log/exim4 || \
 	install -d -oDebian-exim -gadm -m2750 /var/log/exim4
 	install -d -oDebian-exim -gDebian-exim -m750 /var/run/exim4
 	install -d -oDebian-exim -gDebian-exim -m750 /var/spool/exim4