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Bug 1318224 - SELinux is preventing /usr/sbin/unbound from name_bind access on the udp_socket port 61000.
Summary: SELinux is preventing /usr/sbin/unbound from name_bind access on the udp_sock...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: selinux-policy
Version: 7.3
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Lukas Vrabec
QA Contact: Jan Zarsky
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-03-16 10:15 UTC by David Jaša
Modified: 2016-11-04 02:45 UTC (History)
9 users (show)

Fixed In Version: selinux-policy-3.13.1-69.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-11-04 02:45:18 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2016:2283 0 normal SHIPPED_LIVE selinux-policy bug fix and enhancement update 2016-11-03 13:36:25 UTC

Description David Jaša 2016-03-16 10:15:39 UTC 
Looks similar to Fedora bug 990974, bug 1259766 and bug 1272835. Occurs after installation and enabling of unbound and dnssec-trigger.

==============================================================================

SELinux is preventing /usr/sbin/unbound from name_bind access 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.
Do
setsebool -P nis_enabled 1

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

If you believe that unbound 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.
Do
allow this access for now by executing:
# grep unbound /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:named_t:s0
Target Context                system_u:object_r:ephemeral_port_t:s0
Target Objects                port 61000 [ udp_socket ]
Source                        unbound
Source Path                   /usr/sbin/unbound
Port                          61000
Host                          (removed)
Source RPM Packages           unbound-1.4.20-26.el7.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-60.el7_2.3.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed)
                              3.10.0-363.el7.x86_64 #1 SMP Thu Mar 10 08:58:35
                              EST 2016 x86_64 x86_64
Alert Count                   2
First Seen                    2016-03-16 01:04:48 CET
Last Seen                     2016-03-16 01:04:48 CET
Local ID                      358f8283-e008-4a2b-bc36-0a56ff7edf32

Raw Audit Messages
type=AVC msg=audit(1458086688.481:1296): avc:  denied  { name_bind } for  pid=1237 comm="unbound" src=61000 scontext=system_u:system_r:named_t:s0 tcontext=system_u:object_r:ephemeral_port_t:s0 tclass=udp_socket


type=SYSCALL msg=audit(1458086688.481:1296): arch=x86_64 syscall=bind success=no exit=EACCES a0=16 a1=7fdf6dd81b90 a2=1c a3=7ffeab3b2c3c items=0 ppid=1 pid=1237 auid=4294967295 uid=998 gid=996 euid=998 suid=998 fsuid=998 egid=996 sgid=996 fsgid=996 tty=(none) ses=4294967295 comm=unbound exe=/usr/sbin/unbound subj=system_u:system_r:named_t:s0 key=(null)

Hash: unbound,named_t,ephemeral_port_t,udp_socket,name_bind
Comment 2 Lukas Vrabec 2016-03-31 13:22:32 UTC 
commit 70c83cdcf23728ef416f46b8d19d07aa78ad7950
Author: Miroslav Grepl <mgrepl>
Date:   Tue Nov 10 09:26:24 2015 +0100

    unbound wants to use ephemeral ports as a default configuration. Allow to use also udp sockets.
    Resolves: rhbz#1318224
Comment 6 errata-xmlrpc 2016-11-04 02:45:18 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-2283.html
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