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Bug 1088038 - Cannot connect to VPN with unbound enabled
Summary: Cannot connect to VPN with unbound enabled
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: selinux-policy
Version: 7.0
Hardware: Unspecified
OS: Linux
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Miroslav Grepl
QA Contact: Jaroslav Aster
URL:
Whiteboard:
Depends On:
Blocks: 1154097
TreeView+ depends on / blocked
 
Reported: 2014-04-15 21:42 UTC by Ján Rusnačko
Modified: 2015-03-05 10:38 UTC (History)
5 users (show)

Fixed In Version: selinux-policy-3.13.1-2.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-03-05 10:38:44 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
SELinux logs - enforcing mode (219.22 KB, text/plain)
2014-04-17 08:57 UTC, Ján Rusnačko 		no flags Details
SELinux logs - permissive mode (357.36 KB, text/plain)
2014-04-17 08:57 UTC, Ján Rusnačko 		no flags Details
Pluto logs - enforcing (109.54 KB, text/x-log)
2014-04-17 08:58 UTC, Ján Rusnačko 		no flags Details
Pluto logs - permissive (124.55 KB, text/x-log)
2014-04-17 08:58 UTC, Ján Rusnačko 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2015:0458 0 normal SHIPPED_LIVE selinux-policy bug fix and enhancement update 2015-03-05 15:17:00 UTC

Description Ján Rusnačko 2014-04-15 21:42:45 UTC 
Description of problem:
With unbound enabled, I cannot connect to VPN. Gateway is configured as IP address of server, so there should not be any resolution prior to connecting. I am attaching output from /var/log/messages from two connection attempts: one unsuccessful with unbound running, the second one successful with unbound stopped.

Version-Release number of selected component (if applicable):
unbound-1.4.20-19.el7.x86_64
libreswan-3.8-4.el7.x86_64
NetworkManager-0.9.9.1-12.git20140326.4dba720.el7.x86_64
(running current RHEL-7.0-20140409.0 compose)

How reproducible:
always

Steps to Reproduce:
1. Run unbound and try to connect to VPN with libreswan

Additional information:
I am attaching logs as private comments.
Comment 3 Tomáš Hozza 2014-04-16 08:59:53 UTC 
NetworkManager does not configure or communicate with unbound. AFAIK the
libreswan does the reconfiguration of unbound on connecting/disconnecting
and from logs it fails.

Moving to libreswan.
Comment 4 Paul Wouters 2014-04-16 14:59:32 UTC 
It seems the first negotiation just stops at the xauth username/password? Are you sure this is related to unbound at all? this is in the middle of the IKE negotiation. It looks like it was waiting on your password input?

Can you change /etc/ipsec.conf and add to 'config setup'

plutodebug=all
plutostderrlog=/tmp/pluto.log

then restart: systemctl restart ipsec.service
Comment 5 Ján Rusnačko 2014-04-17 07:59:12 UTC 
I observed this issue when unbound was running and when stopped everything was fine.

Anyway, I reinstalled everything from scratch, purged config files and I cannot reproduce this anymore. Please closed this as NOTABUG.

Thanks !
Comment 6 Ján Rusnačko 2014-04-17 08:52:31 UTC 
Alright, unbound has nothing with this - I can reproduce this with SELinux in permissive mode. When back in enforcing, I can connect to VPN. Attaching SELinux logs (dontaudit rules disabled) and pluto logs for both cases.
Comment 7 Ján Rusnačko 2014-04-17 08:57:13 UTC 
Created attachment 887115 [details]
SELinux logs - enforcing mode
Comment 8 Ján Rusnačko 2014-04-17 08:57:41 UTC 
Created attachment 887116 [details]
SELinux logs - permissive mode
Comment 9 Ján Rusnačko 2014-04-17 08:58:03 UTC 
Created attachment 887117 [details]
Pluto logs - enforcing
Comment 10 Ján Rusnačko 2014-04-17 08:58:23 UTC 
Created attachment 887118 [details]
Pluto logs - permissive
Comment 11 Paul Wouters 2014-04-17 17:15:19 UTC 
this looks like the same SElinux issue we had in the past, that the updown script running 'pidof unbound' is getting blocked by SElinux.
Comment 12 Daniel Walsh 2014-04-21 13:55:33 UTC 
commit bbcb0653a76065f072a98cb004fc8b07d357130a
and
commit a1e7b28f2d8e6cec2844b52160cd0ed2e886f17a

Fix this in git.
Comment 16 errata-xmlrpc 2015-03-05 10:38:44 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-2015-0458.html
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