Bug 1313008 - SELinux is preventing dhclient from 'name_bind' accesses on the udp_socket port 61000.
SELinux is preventing dhclient from 'name_bind' accesses on the udp_socket po...
Product: Fedora
Classification: Fedora
Component: selinux-policy (Show other bugs)
x86_64 Unspecified
medium Severity medium
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Assigned To: Lukas Vrabec
Fedora Extras Quality Assurance
Depends On:
  Show dependency treegraph
Reported: 2016-02-29 12:23 EST by Stanislav Stipl
Modified: 2016-12-20 14:07 EST (History)
7 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2016-12-20 14:07:59 EST
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Stanislav Stipl 2016-02-29 12:23:00 EST
Description of problem:
SELinux problem ocurred after connecting Vodafone (Huawei) K5150 LTE USB modem

Bus 001 Device 005: ID 12d1:1f16 Huawei Technologies Co., Ltd. K5150 LTE modem (Mass Storage Mode)

[  955.200079] scsi 6:0:0:0: Direct-Access     Vodafone Storage(Huawei)  2.31 PQ: 0 ANSI: 2
[  955.202834] sd 6:0:0:0: Attached scsi generic sg1 type 0
[  955.277522] sd 6:0:0:0: [sdb] Attached SCSI removable disk
SELinux is preventing dhclient from 'name_bind' accesses on the udp_socket port 61000.

*****  Plugin catchall_boolean (89.3 confidence) suggests   ******************

If you want to allow nis to enabled
Then you must tell SELinux about this by enabling the 'nis_enabled' boolean.
You can read 'None' man page for more details.
setsebool -P nis_enabled 1

*****  Plugin catchall (11.6 confidence) suggests   **************************

If you believe that dhclient should be allowed name_bind access on the port 61000 udp_socket by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
allow this access for now by executing:
# grep dhclient /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:dhcpc_t:s0
Target Context                system_u:object_r:ephemeral_port_t:s0
Target Objects                port 61000 [ udp_socket ]
Source                        dhclient
Source Path                   dhclient
Port                          61000
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-155.fc23.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.2.6-301.fc23.x86_64 #1 SMP Fri
                              Nov 20 22:22:41 UTC 2015 x86_64 x86_64
Alert Count                   1
First Seen                    2015-12-07 16:04:01 CET
Last Seen                     2015-12-07 16:04:01 CET
Local ID                      19a7a8b6-90e4-4ded-8515-f69826799e33

Raw Audit Messages
type=AVC msg=audit(1449500641.622:733): avc:  denied  { name_bind } for  pid=10755 comm="dhclient" src=61000 scontext=system_u:system_r:dhcpc_t:s0 tcontext=system_u:object_r:ephemeral_port_t:s0 tclass=udp_socket permissive=0

Hash: dhclient,dhcpc_t,ephemeral_port_t,udp_socket,name_bind

Version-Release number of selected component:

Additional info:
reporter:       libreport-2.6.4
hashmarkername: setroubleshoot
kernel:         4.4.2-301.fc23.x86_64
type:           libreport

Potential duplicate: bug 1049644
Comment 1 Thomas Mueller 2016-08-30 02:20:27 EDT
f24 allows dhcpc_t access to ephermal_port_t: 

$> sesearch -A -s dhcpc_t -c udp_socket -p name_bind
Found 5 semantic av rules:
   allow dhcpc_t dhcpc_port_t : udp_socket name_bind ; 
   allow dhcpc_t unreserved_port_type : udp_socket name_bind ; 
   allow nsswitch_domain ephemeral_port_t : udp_socket name_bind ; 
   allow nsswitch_domain unreserved_port_t : udp_socket name_bind ; 
   allow nsswitch_domain port_t : udp_socket name_bind ; 

also RHEL7 allows this access.

seems this is fixed.
Comment 2 Fedora Admin XMLRPC Client 2016-09-27 10:59:07 EDT
This package has changed ownership in the Fedora Package Database.  Reassigning to the new owner of this component.
Comment 3 Fedora End Of Life 2016-11-24 10:50:59 EST
This message is a reminder that Fedora 23 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 23. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora  'version'
of '23'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 23 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.
Comment 4 Fedora End Of Life 2016-12-20 14:07:59 EST
Fedora 23 changed to end-of-life (EOL) status on 2016-12-20. Fedora 23 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
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