Bug 573246 - SELinux is preventing /usr/sbin/avahi-autoipd "read" access on /proc/<pid>/cmdline.
Summary: SELinux is preventing /usr/sbin/avahi-autoipd "read" access on /proc/<pi...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 12
Hardware: i386
OS: Linux
low
medium
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: setroubleshoot_trace_hash:8b5ddc8e1bf...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-03-13 17:45 UTC by ishan
Modified: 2010-03-20 03:32 UTC (History)
2 users (show)

Fixed In Version: selinux-policy-3.6.32-103.fc12
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2010-03-20 03:32:42 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description ishan 2010-03-13 17:45:05 UTC
Summary:

SELinux is preventing /usr/sbin/avahi-autoipd "read" access on /proc//cmdline.

Detailed Description:

[avahi-autoipd has a permissive type (avahi_t). This access was not denied.]

SELinux denied access requested by avahi-autoipd. It is not expected that this
access is required by avahi-autoipd 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:avahi_t:s0-s0:c0.c1023
Target Context                unconfined_u:unconfined_r:unconfined_t:s0
Target Objects                /proc/<pid>/cmdline [ file ]
Source                        avahi-autoipd
Source Path                   /usr/sbin/avahi-autoipd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           avahi-autoipd-0.6.25-5.fc12
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.32-92.fc12
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   catchall
Host Name                     (removed)
Platform                      Linux (removed) 2.6.32.9-70.fc12.i686 #1 SMP Wed Mar 3
                              05:14:32 UTC 2010 i686 i686
Alert Count                   1
First Seen                    Sun 14 Mar 2010 01:13:31 AM IST
Last Seen                     Sun 14 Mar 2010 01:13:31 AM IST
Local ID                      88489d3f-dde0-4f6e-a723-738a4d9194d3
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1268509411.506:42): avc:  denied  { read } for  pid=6497 comm="avahi-autoipd" path="/proc/3537/cmdline" dev=proc ino=36263 scontext=system_u:system_r:avahi_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1268509411.506:42): arch=40000003 syscall=11 success=yes exit=0 a0=8f01e78 a1=8f0e5c8 a2=8f0e600 a3=2 items=0 ppid=6495 pid=6497 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="avahi-autoipd" exe="/usr/sbin/avahi-autoipd" subj=system_u:system_r:avahi_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  catchall,avahi-autoipd,avahi_t,unconfined_t,file,read
audit2allow suggests:

#============= avahi_t ==============
allow avahi_t unconfined_t:file read;

Comment 1 Daniel Walsh 2010-03-15 03:12:02 UTC
Miroslav, add

	allow avahi_t $1:file read;


to avahi_dbus_chat

Comment 2 Miroslav Grepl 2010-03-15 11:21:07 UTC
Fixed in selinux-policy-3.6.32-102.fc12

Comment 3 Fedora Update System 2010-03-15 22:18:54 UTC
selinux-policy-3.6.32-103.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-103.fc12

Comment 4 Fedora Update System 2010-03-16 23:25:06 UTC
selinux-policy-3.6.32-103.fc12 has been pushed to the Fedora 12 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: http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-103.fc12

Comment 5 Fedora Update System 2010-03-20 03:31:03 UTC
selinux-policy-3.6.32-103.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.


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