SELinux Exim Problem
Daniel J Walsh
dwalsh at redhat.com
Mon Sep 7 10:38:42 UTC 2009
On 09/07/2009 04:34 AM, Didar Hossain wrote:
> On Sat, Sep 5, 2009 at 9:45 PM, Frank Chiulli<frankc.fedora at gmail.com> wrote:
>> On F11 when exim attempts to retrieve mail from my ISP, I get the following:
>
> How are you pulling the mail from your ISP?
>
>
>> Summary:
>> SELinux is preventing exim (exim_t) "getattr" boot_t.
>>
>> Detailed Description:
>> SELinux denied access requested by exim. It is not expected that this
>> access is required by exim and this access may signal an intrusion
>> attempt. It is also possible that the specific version or
>> configuration of the application is causing it to require additional
>> access.
>>
>> Allowing Access:
>> You can generate a local policy module to allow this access - see FAQ
>> (http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Or you can
>> disable SELinux protection altogether. Disabling SELinux protection is
>> not recommended. Please file a bug report
>> (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) against this
>> package.
>>
>> Additional Information:
>> Source Context system_u:system_r:exim_t:s0
>> Target Context system_u:object_r:boot_t:s0
>> Target Objects /boot [ dir ]
>> Source exim
>> Source Path /usr/sbin/exim
>> Port <Unknown>
>> Host flinux
>> Source RPM Packages exim-4.69-10.fc11
>> Target RPM Packages filesystem-2.4.21-1.fc11
>> Policy RPM selinux-policy-3.6.12-80.fc11
>> Selinux Enabled True
>> Policy Type targeted
>> MLS Enabled True
>> Enforcing Mode Enforcing
>> Plugin Name catchall
>> Host Name flinux
>> Platform Linux flinux 2.6.29.6-217.2.16.fc11.i686.PAE #1
>> SMP Mon Aug 24 17:16:21 EDT 2009 i686 athlon
>> Alert Count 327
>> First Seen Sun 12 Jul 2009 05:09:10 PM PDT
>> Last Seen Sat 05 Sep 2009 09:05:41 AM PDT
>> Local ID c330c7e2-7fd7-45ae-8ebb-8de1def6e145
>> Line Numbers
>>
>> Raw Audit Messages
>> node=flinux type=AVC msg=audit(1252166741.77:28): avc: denied {
>> getattr } for pid=2279 comm="exim" path="/boot" dev=sda1 ino=2
>> scontext=system_u:system_r:exim_t:s0
>> tcontext=system_u:object_r:boot_t:s0 tclass=dir
>>
>> node=flinux type=SYSCALL msg=audit(1252166741.77:28): arch=40000003
>> syscall=195 success=no exit=-13 a0=bfbe1292 a1=bfbe1688 a2=756ff4 a3=0
>> items=0 ppid=1489 pid=2279 auid=4294967295 uid=93 gid=93 euid=93
>> suid=93 fsuid=93 egid=93 sgid=93 fsgid=93 tty=(none) ses=4294967295
>> comm="exim" exe="/usr/sbin/exim" subj=system_u:system_r:exim_t:s0
>> key=(null)
>>
>> =====
>>
>> Other information:
>> RPMs:
>> exim-4.69-10.fc11.i586
>> selinux-policy-3.6.12-80.fc11.noarch
>> selinux-policy-targeted-3.6.12-80.fc11.noarch
>>
>> The mail does get through but I get an SELinux error for each message.
>>
>> I've looked for '/boot' in exim config files but came up empty.
>>
>> I installed F11 but kept my home directory which is on a different disk.
>>
>> Since I have not heard anyone else complaining about this, I figure
>> that it's my configuration. I just don't know where else to look.
>>
>> Frank
>>
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>>
>
Probably some api that exim is calling is looking at the mounted file systems which is causing it to look at /boot.
I think we can allow this for now.
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