Bug 546691 - SELinux is preventing /usr/sbin/avahi-autoipd "net_raw" access.
Summary: SELinux is preventing /usr/sbin/avahi-autoipd "net_raw" access.
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 12
Hardware: x86_64
OS: Linux
low
medium
Target Milestone: ---
Assignee: Daniel Walsh
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: setroubleshoot_trace_hash:6f21379f318...
: 543832 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2009-12-11 17:48 UTC by Mateusz M.
Modified: 2010-01-08 20:08 UTC (History)
7 users (show)

Fixed In Version: 3.6.32-66.fc12
Clone Of:
Environment:
Last Closed: 2010-01-05 22:58:43 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Mateusz M. 2009-12-11 17:48:09 UTC
Summary:

SELinux is preventing /usr/sbin/avahi-autoipd "net_raw" access.

Detailed Description:

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://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Please file a bug
report.

Additional Information:

Source Context                system_u:system_r:avahi_t:s0
Target Context                system_u:system_r:avahi_t:s0
Target Objects                None [ capability ]
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-3.6.32-56.fc12
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   catchall
Host Name                     (removed)
Platform                      Linux (removed) 2.6.32-git7 #1 SMP Fri Dec 11
                              13:15:33 GMT 2009 x86_64 x86_64
Alert Count                   3
First Seen                    Fri 11 Dec 2009 05:27:02 PM GMT
Last Seen                     Fri 11 Dec 2009 05:27:24 PM GMT
Local ID                      5e5bd864-1b75-4b44-91b9-02a740572552
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1260552444.962:69): avc:  denied  { net_raw } for  pid=8542 comm="avahi-autoipd" capability=13  scontext=system_u:system_r:avahi_t:s0 tcontext=system_u:system_r:avahi_t:s0 tclass=capability

node=(removed) type=SYSCALL msg=audit(1260552444.962:69): arch=c000003e syscall=41 success=no exit=-1 a0=11 a1=2 a2=0 a3=22 items=0 ppid=1271 pid=8542 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 key=(null)



Hash String generated from  selinux-policy-3.6.32-56.fc12,catchall,avahi-autoipd,avahi_t,avahi_t,capability,net_raw
audit2allow suggests:

#============= avahi_t ==============
allow avahi_t self:capability net_raw;

Comment 1 Daniel Walsh 2009-12-11 21:22:35 UTC
Does avahi really need raw access to the network?

Comment 2 Lennart Poettering 2009-12-17 14:53:30 UTC
avahi-autoipd does, because it synthesizes ARP messages for implementation of IPV4LL/APIPA to assing a link-local IP address when DHCP is not available.

avahi-daemon itself does not.

Comment 3 Daniel Walsh 2009-12-17 15:48:46 UTC
You can add these rules for now using

# grep avc /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Fixed in selinux-policy-3.6.32-60.fc12.noarch

Comment 4 Lennart Poettering 2009-12-17 16:20:40 UTC
*** Bug 543832 has been marked as a duplicate of this bug. ***

Comment 5 Fedora Update System 2009-12-22 21:54:33 UTC
selinux-policy-3.6.32-63.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-63.fc12

Comment 6 Fedora Update System 2010-01-04 21:51:34 UTC
selinux-policy-3.6.32-66.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-66.fc12

Comment 7 Fedora Update System 2010-01-05 22:47:27 UTC
selinux-policy-3.6.32-66.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/F12/FEDORA-2010-0184

Comment 8 Fedora Update System 2010-01-05 22:56:13 UTC
selinux-policy-3.6.32-63.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 9 Fedora Update System 2010-01-08 20:02:16 UTC
selinux-policy-3.6.32-66.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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