Bug 442209

Description of problem:

mimedefang 2.64
sendmail 8.14.2

SELinux is preventing sendmail (sendmail_t) "write" to mimedefang.sock
(var_spool_t).

Detailed Description:

SELinux is preventing sendmail (sendmail_t) "write" to mimedefang.sock
(var_spool_t). The SELinux type var_spool_t, is a generic type for all files in
the directory and very few processes (SELinux Domains) are allowed to write to
this SELinux type. This type of denial usual indicates a mislabeled file. By
default a file created in a directory has the gets the context of the parent
directory, but SELinux policy has rules about the creation of directories, that
say if a process running in one SELinux Domain (D1) creates a file in a
directory with a particular SELinux File Context (F1) the file gets a different
File Context (F2). The policy usually allows the SELinux Domain (D1) the ability
to write, unlink, and append on (F2). But if for some reason a file
(mimedefang.sock) was created with the wrong context, this domain will be
denied. The usual solution to this problem is to reset the file context on the
target file, restorecon -v 'mimedefang.sock'. If the file context does not
change from var_spool_t, then this is probably a bug in policy. Please file a
bug report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) against the
selinux-policy package. If it does change, you can try your application again to
see if it works. The file context could have been mislabeled by editing the file
or moving the file from a different directory, if the file keeps getting
mislabeled, check the init scripts to see if they are doing something to
mislabel the file.

Additional Information:

Source Context                system_u:system_r:sendmail_t:s0
Target Context                system_u:object_r:var_spool_t:s0
Target Objects                mimedefang.sock [ sock_file ]
Source                        sendmail
Source Path                   /usr/sbin/sendmail.sendmail
Port                          <Unknown>
Host                          fedora1.kantors.net
Source RPM Packages           sendmail-8.14.2-1.fc8
Target RPM Packages           
Policy RPM                    selinux-policy-3.0.8-95.fc8
Selinux Enabled               True
Policy Type                   targeted
MLS Enabled                   True
Enforcing Mode                Permissive
Plugin Name                   mislabeled_file
Host Name                     fedora1.kantors.net
Platform                      Linux fedora1.kantors.net 2.6.24.4-64.fc8 #1 SMP
                              Sat Mar 29 09:54:46 EDT 2008 i686 i686
Alert Count                   2
First Seen                    Sat 12 Apr 2008 01:16:45 PM EDT
Last Seen                     Sat 12 Apr 2008 01:20:20 PM EDT
Local ID                      858e460f-6088-44fd-b120-9b13381c603e
Line Numbers                  

Raw Audit Messages            

host=fedora1.kantors.net type=AVC msg=audit(1208020820.312:798): avc:  denied  {
write } for  pid=24992 comm="sendmail" name="mimedefang.sock" dev=dm-0
ino=4751385 scontext=system_u:system_r:sendmail_t:s0
tcontext=system_u:object_r:var_spool_t:s0 tclass=sock_file

host=fedora1.kantors.net type=SYSCALL msg=audit(1208020820.312:798):
arch=40000003 syscall=102 success=yes exit=0 a0=3 a1=bfcedb40 a2=b7f3a31c a3=0
items=0 ppid=24917 pid=24992 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0
egid=51 sgid=51 fsgid=51 tty=(none) comm="sendmail"
exe="/usr/sbin/sendmail.sendmail" subj=system_u:system_r:sendmail_t:s0 key=(null)