Adam Gibson wrote:
One thing I noticed after the latest yum update of sendmail from the
previous update is that alternatives is broken for /etc/pam.d/smtp for
the sendmail package. Sendmail used to create /etc/pam.d/smtp.sendmail
which alternatives would create a symlink at /etc/pam.d/smtp to
eventually point to the current configured smtp pam config
(/etc/pam.d/smtp.sendmail for sendmail).
a yum update showed this:
warning: /etc/pam.d/smtp created as /etc/pam.d/smtp.rpmnew
# ls -al /etc/pam.d/smtp*
lrwxrwxrwx 1 root root 25 Mar 28 12:48 /etc/pam.d/smtp
-> /etc/alternatives/mta-pam
-rw-r--r-- 1 root root 116 Mar 26 22:37 smtp.rpmnew
# ls -al /etc/alternatives/mta-pam
lrwxrwxrwx 1 root root 24 Mar 28 12:48
/etc/alternatives/mta-pam -> /etc/pam.d/smtp.sendmail
smtp.sendmail no longer exists. It appears to just be directly smtp now
which was stored as smtp.rpmnew because the symlink created by
alternatives was at /etc/pam.d/smtp. Issuing an alternatives --config
mta will just setup /etc/pam.d/smtp to eventually point to
/etc/pam.d/smtp.sendmail again which does not exist.
This is incorrect. I moved smtp.rpmnew to smtp and alternatives does
not do anything with the /etc/pam.d/smtp. I mistakenly thought it did
the first time but it was just leftover from the previous sendmail
package. Moving /etc/pam.d/smtp.rpmnew to /etc/pam.d/smtp fixes the
problem.
So basically it boils down to alternatives with the newer sendmail
updates do not do anything with /etc/pam.d/smtp anymore(It is part of
the packages itself and not a symlink). The problem I had is that the
old symlink was in the way when sendmail was updated.
I wonder if other MTAs expect /etc/pam.d/smtp to still be a symlink. If
you do an alternatives for postfix or some other mta will it overwrite
/etc/pam.d/smtp? If so that could be a problem if you switch back.
Moving /etc/pam.d/smtp.rpmnew to /etc/pam.d/smtp.sendmail fixes the
problem for me.
I do not know what the ramifications are of having a broken symlink to
/etc/pam.d/smtp but it must be used for something.
Marc Deslauriers wrote:
---------------------------------------------------------------------
Fedora Legacy Update Advisory
Synopsis: Updated sendmail packages fix security issue
Advisory ID: FLSA:186277
Issue date: 2006-04-04
Product: Red Hat Linux, Fedora Core
Keywords: Bugfix, Security
CVE Names: CVE-2006-0058
---------------------------------------------------------------------
---------------------------------------------------------------------
1. Topic:
Updated sendmail packages that fix a security issue are now
available.
The sendmail package provides a widely used Mail Transport Agent (MTA).
[Updated 4th April 2006]
Red Hat Linux 7.3, Red Hat Linux 9, and Fedora Core 1 packages have been
updated to correct numerous problems with the previously released
updates.
2. Relevant releases/architectures:
Red Hat Linux 7.3 - i386
Red Hat Linux 9 - i386
Fedora Core 1 - i386
Fedora Core 2 - i386
Fedora Core 3 - i386, x86_64
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