Bug 632951

Summary:	SELinux is preventing /usr/libexec/dovecot/dovecot-lda "write" access on /tmp.
Product:	[Fedora] Fedora	Reporter:	Jiri Kastner <jkastner>
Component:	selinux-policy	Assignee:	Daniel Walsh <dwalsh>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	13	CC:	dwalsh, mgrepl
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:	setroubleshoot_trace_hash:24fb3d637bcea3ca275a494a628c1fc9dc28e705230453c1a79219c99053fc6c
Fixed In Version:	selinux-policy-3.7.19-57.fc13	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2010-09-22 00:38:41 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Jiri Kastner 2010-09-12 07:21:08 UTC

Summary:

SELinux is preventing /usr/libexec/dovecot/dovecot-lda "write" access on /tmp.

Detailed Description:

[SELinux is in permissive mode. This access was not denied.]

SELinux denied access requested by deliver. It is not expected that this access
is required by deliver 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://docs.fedoraproject.org/selinux-faq-fc5/#id2961385) Please file a bug
report.

Additional Information:

Source Context                system_u:system_r:dovecot_deliver_t:s0
Target Context                system_u:object_r:tmp_t:s0
Target Objects                /tmp [ dir ]
Source                        deliver
Source Path                   /usr/libexec/dovecot/dovecot-lda
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           dovecot-2.0.1-1_118.fc13
Target RPM Packages           filesystem-2.4.31-1.fc13
Policy RPM                    selinux-policy-3.7.19-56.fc13
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Plugin Name                   catchall
Host Name                     (removed)
Platform                      Linux localhost.localdomain
                              2.6.34.6-54.fc13.x86_64 #1 SMP Sun Sep 5 17:16:27
                              UTC 2010 x86_64 x86_64
Alert Count                   3
First Seen                    Sun 12 Sep 2010 09:18:13 AM CEST
Last Seen                     Sun 12 Sep 2010 09:18:13 AM CEST
Local ID                      35e00aa5-4678-4b90-8827-a44d63fe50b6
Line Numbers                  

Raw Audit Messages            

node=localhost type=AVC msg=audit(1284275893.818:64): avc:  denied  { write } for  pid=4355 comm="deliver" name="tmp" dev=sda7 ino=3276802 scontext=system_u:system_r:dovecot_deliver_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=dir

node=localhost type=AVC msg=audit(1284275893.818:64): avc:  denied  { add_name } for  pid=4355 comm="deliver" name="dovecot.lda.c5dadc05b5ccd36d" scontext=system_u:system_r:dovecot_deliver_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=dir

node=localhost type=AVC msg=audit(1284275893.818:64): avc:  denied  { create } for  pid=4355 comm="deliver" name="dovecot.lda.c5dadc05b5ccd36d" scontext=system_u:system_r:dovecot_deliver_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=file

node=localhost type=SYSCALL msg=audit(1284275893.818:64): arch=c000003e syscall=2 success=yes exit=9 a0=10273c8 a1=c2 a2=1b6 a3=0 items=0 ppid=4354 pid=4355 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 String generated from  catchall,deliver,dovecot_deliver_t,tmp_t,dir,write
audit2allow suggests:

#============= dovecot_deliver_t ==============
#!!!! The source type 'dovecot_deliver_t' can write to a 'dir' of the following types:
# user_home_dir_t, mail_spool_t, mnt_t, user_home_t

allow dovecot_deliver_t tmp_t:dir { write add_name };
allow dovecot_deliver_t tmp_t:file create;

Comment 1 Jiri Kastner 2010-09-12 07:22:45 UTC

Summary:

SELinux is preventing /usr/libexec/dovecot/dovecot-lda "remove_name" access on
dovecot.lda.c5dadc05b5ccd36d.

Detailed Description:

[SELinux is in permissive mode. This access was not denied.]

SELinux denied access requested by deliver. It is not expected that this access
is required by deliver 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://docs.fedoraproject.org/selinux-faq-fc5/#id2961385) Please file a bug
report.

Additional Information:

Source Context                system_u:system_r:dovecot_deliver_t:s0
Target Context                system_u:object_r:tmp_t:s0
Target Objects                dovecot.lda.c5dadc05b5ccd36d [ dir ]
Source                        deliver
Source Path                   /usr/libexec/dovecot/dovecot-lda
Port                          <Unknown>
Host                          localhost
Source RPM Packages           dovecot-2.0.1-1_118.fc13
Target RPM Packages           
Policy RPM                    selinux-policy-3.7.19-56.fc13
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Plugin Name                   catchall
Host Name                     localhost.localdomain
Platform                      Linux localhost.localdomain
                              2.6.34.6-54.fc13.x86_64 #1 SMP Sun Sep 5 17:16:27
                              UTC 2010 x86_64 x86_64
Alert Count                   2
First Seen                    Sun 12 Sep 2010 09:18:13 AM CEST
Last Seen                     Sun 12 Sep 2010 09:18:13 AM CEST
Local ID                      2b9edd86-e82b-4867-9098-5686782d8fd3
Line Numbers                  

Raw Audit Messages            

node=localhost type=AVC msg=audit(1284275893.818:65): avc:  denied  { remove_name } for  pid=4355 comm="deliver" name="dovecot.lda.c5dadc05b5ccd36d" dev=sda7 ino=3277005 scontext=system_u:system_r:dovecot_deliver_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=dir

node=localhost type=AVC msg=audit(1284275893.818:65): avc:  denied  { unlink } for  pid=4355 comm="deliver" name="dovecot.lda.c5dadc05b5ccd36d" dev=sda7 ino=3277005 scontext=system_u:system_r:dovecot_deliver_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=file

node=localhost type=SYSCALL msg=audit(1284275893.818:65): arch=c000003e syscall=87 success=yes exit=0 a0=10273c8 a1=c2 a2=0 a3=0 items=0 ppid=4354 pid=4355 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)

Comment 2 Jiri Kastner 2010-09-12 07:40:24 UTC

dovecot-2.0.1-1_118.fc13.x86_64
dovecot-managesieve-2.0-10.fc13.x86_64
dovecot-pigeonhole-2.0-10.fc13.x86_64

fetchmail running /usr/libexec/dovecot/deliver directly, no idea what exactly is dovecot doing on /tmp, but it started after added policy regarding appending messages to /var/log/dovecot/deliver-errors.log (bug 629731).
content of /var/log/dovecot/deliver-errors.log before switching to permissive mode:
Sep 10 11:28:16 lda(username): Error: safe_mkstemp(/tmp/dovecot.lda.) failed: Permission denied
Sep 10 11:38:17 lda(username): Error: safe_mkstemp(/tmp/dovecot.lda.) failed: Permission denied

Comment 3 Miroslav Grepl 2010-09-13 10:39:20 UTC

Fixed in selinux-policy-3.7.19-56.fc13.

Comment 4 Jiri Kastner 2010-09-13 12:35:47 UTC

Summary:

SELinux is preventing /usr/libexec/dovecot/dovecot-lda "remove_name" access on
dovecot.lda.af1db9f598b6c099.

Detailed Description:

[SELinux is in permissive mode. This access was not denied.]

SELinux denied access requested by deliver. It is not expected that this access
is required by deliver 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://docs.fedoraproject.org/selinux-faq-fc5/#id2961385) Please file a bug
report.

Additional Information:

Source Context                system_u:system_r:dovecot_deliver_t:s0
Target Context                system_u:object_r:tmp_t:s0
Target Objects                dovecot.lda.af1db9f598b6c099 [ dir ]
Source                        deliver
Source Path                   /usr/libexec/dovecot/dovecot-lda
Port                          <Unknown>
Host                          localhost
Source RPM Packages           dovecot-2.0.1-1_118.fc13
Target RPM Packages           
Policy RPM                    selinux-policy-3.7.19-56.fc13
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Plugin Name                   catchall
Host Name                     localhost.localdomain
Platform                      Linux localhost.localdomain
                              2.6.34.6-54.fc13.x86_64 #1 SMP Sun Sep 5 17:16:27
                              UTC 2010 x86_64 x86_64
Alert Count                   2
First Seen                    Mon 13 Sep 2010 02:22:31 PM CEST
Last Seen                     Mon 13 Sep 2010 02:22:31 PM CEST
Local ID                      ca4eee30-2ef6-49fd-a287-d65a1a22a0e9
Line Numbers                  

Raw Audit Messages            

node=localhost type=AVC msg=audit(1284380551.81:54): avc:  denied  { remove_name } for  pid=3980 comm="deliver" name="dovecot.lda.af1db9f598b6c099" dev=sda7 ino=3277067 scontext=system_u:system_r:dovecot_deliver_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=dir

node=localhost type=AVC msg=audit(1284380551.81:54): avc:  denied  { unlink } for  pid=3980 comm="deliver" name="dovecot.lda.af1db9f598b6c099" dev=sda7 ino=3277067 scontext=system_u:system_r:dovecot_deliver_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=file

node=localhost type=SYSCALL msg=audit(1284380551.81:54): arch=c000003e syscall=87 success=yes exit=0 a0=22cd3c8 a1=c2 a2=0 a3=0 items=0 ppid=3979 pid=3980 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)

Comment 5 Miroslav Grepl 2010-09-13 12:40:25 UTC

I meant "Fixed in selinux-policy-3.7.19-57.fc13"

Comment 6 Fedora Update System 2010-09-13 16:09:05 UTC

selinux-policy-3.7.19-57.fc13 has been submitted as an update for Fedora 13.
https://admin.fedoraproject.org/updates/selinux-policy-3.7.19-57.fc13

Comment 7 Fedora Update System 2010-09-15 05:30:15 UTC

selinux-policy-3.7.19-57.fc13 has been pushed to the Fedora 13 testing repository.  If problems still persist, please make note of it in this bug report.
 If you want to test the update, you can install it with 
 su -c 'yum --enablerepo=updates-testing update selinux-policy'.  You can provide feedback for this update here: https://admin.fedoraproject.org/updates/selinux-policy-3.7.19-57.fc13

Comment 8 Fedora Update System 2010-09-22 00:37:40 UTC

selinux-policy-3.7.19-57.fc13 has been pushed to the Fedora 13 stable repository.  If problems still persist, please make note of it in this bug report.