Bug 672967 - SELinux is preventing /usr/libexec/dovecot/dovecot-lda from 'read' accesses on the fifo_file fifo_file.
Summary: SELinux is preventing /usr/libexec/dovecot/dovecot-lda from 'read' accesses o...
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: rawhide
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: setroubleshoot_trace_hash:186b9d04e6a...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-01-26 20:30 UTC by Nicolas Mailhot
Modified: 2011-01-27 16:28 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-01-27 16:28:01 UTC
Type: ---


Attachments (Terms of Use)

Description Nicolas Mailhot 2011-01-26 20:30:33 UTC
SELinux is preventing /usr/libexec/dovecot/dovecot-lda from 'read' accesses on the fifo_file fifo_file.

*****  Plugin leaks (50.5 confidence) suggests  ******************************

If you want to ignore dovecot-lda trying to read access the fifo_file fifo_file, because you believe it should not need this access.
Then you should report this as a bug.  
You can generate a local policy module to dontaudit this access.
Do
# grep /usr/libexec/dovecot/dovecot-lda /var/log/audit/audit.log | audit2allow -D -M mypol
# semodule -i mypol.pp

*****  Plugin catchall (50.5 confidence) suggests  ***************************

If you believe that dovecot-lda should be allowed read access on the fifo_file fifo_file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep deliver /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:dovecot_deliver_t:s0
Target Context                system_u:system_r:postfix_master_t:s0
Target Objects                fifo_file [ fifo_file ]
Source                        deliver
Source Path                   /usr/libexec/dovecot/dovecot-lda
Port                          <Inconnu>
Host                          (removed)
Source RPM Packages           dovecot-2.0.9-1.fc15
Target RPM Packages           
Policy RPM                    selinux-policy-3.9.13-5.fc15
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 2.6.38-0.rc2.git3.2.fc15.x86_64 #1
                              SMP Wed Jan 26 01:28:23 UTC 2011 x86_64 x86_64
Alert Count                   11
First Seen                    mer. 26 janv. 2011 18:40:33 CET
Last Seen                     mer. 26 janv. 2011 21:10:39 CET
Local ID                      9edc300c-c975-4752-a27f-0e9410fb8170

Raw Audit Messages
type=AVC msg=audit(1296072639.756:224): avc:  denied  { read } for  pid=2514 comm="deliver" path="pipe:[19495]" dev=pipefs ino=19495 scontext=system_u:system_r:dovecot_deliver_t:s0 tcontext=system_u:system_r:postfix_master_t:s0 tclass=fifo_file


type=AVC msg=audit(1296072639.756:224): avc:  denied  { write } for  pid=2514 comm="deliver" path="pipe:[19495]" dev=pipefs ino=19495 scontext=system_u:system_r:dovecot_deliver_t:s0 tcontext=system_u:system_r:postfix_master_t:s0 tclass=fifo_file


type=SYSCALL msg=audit(1296072639.756:224): arch=x86_64 syscall=execve success=yes exit=0 a0=7fc9668593a0 a1=7fc966859330 a2=7fc966859190 a3=7fff408bbce0 items=0 ppid=2513 pid=2514 auid=4294967295 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=4294967295 comm=deliver exe=/usr/libexec/dovecot/dovecot-lda subj=system_u:system_r:dovecot_deliver_t:s0 key=(null)

Hash: deliver,dovecot_deliver_t,postfix_master_t,fifo_file,read

audit2allow

#============= dovecot_deliver_t ==============
allow dovecot_deliver_t postfix_master_t:fifo_file { read write };

audit2allow -R

#============= dovecot_deliver_t ==============
allow dovecot_deliver_t postfix_master_t:fifo_file { read write };

Comment 1 Daniel Walsh 2011-01-27 16:28:01 UTC
Miroslav lets add this to F13/F14

	postfix_rw_master_pipes(dovecot_deliver_t)
#######################################
## <summary>
##	Allow read/write postfix master pipes
## </summary>
## <param name="domain">
##	<summary>
##	Domain allowed access.
##	</summary>
## </param>
#
interface(`postfix_rw_master_pipes',`
	gen_require(`
		type postfix_master_t;
	')

	allow $1 postfix_master_t:fifo_file rw_fifo_file_perms;
')


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