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Bug 1084429 - conman AVC denials on rhel 7
Summary: conman AVC denials on rhel 7
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
medium
medium
Target Milestone: rc
: ---
Assignee: Miroslav Grepl
QA Contact: Dalibor Pospíšil
URL:
Whiteboard:
Depends On:
Blocks: 1081283 1155046
TreeView+ depends on / blocked
 
Reported: 2014-04-04 10:25 UTC by Miroslav Hradílek
Modified: 2015-03-05 10:38 UTC (History)
5 users (show)

Fixed In Version: selinux-policy-3.13.1-1.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
: 1155046 (view as bug list)
Environment:
Last Closed: 2015-03-05 10:38:21 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)
ausearch output (4.00 KB, text/plain)
2014-04-04 10:26 UTC, Miroslav Hradílek
no flags Details


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 Miroslav Hradílek 2014-04-04 10:25:29 UTC
Description of problem:
There are avc denials when running conmand binary (from package conman) as root on foreground for the purpose of testing.

# cat avcs_recent.txt | audit2allow 
#============= conman_t ==============
allow conman_t net_conf_t:file { read getattr open };
allow conman_t self:tcp_socket accept;

#!!!! This avc can be allowed using the boolean 'daemons_use_tty'
allow conman_t user_devpts_t:chr_file open;
allow conman_t user_tmp_t:lnk_file read;

Version-Release number of selected component (if applicable):
selinux-policy-3.12.1-140.el7.noarch
conman-0.2.7-8.el7.x86_64

Steps to Reproduce:
Run the test from external tracker and see the denials.

The test basically configures conmand to share pty console. The shared console is accessed using conman client and programmatic access to it is allowed by connecting its stdio to another pty using socat (from package socat).

Comment 1 Miroslav Hradílek 2014-04-04 10:26:53 UTC
Created attachment 882647 [details]
ausearch output

Comment 3 Miroslav Grepl 2014-04-08 05:07:58 UTC
How did you get 

type=AVC msg=audit(04/04/2014 05:40:13.160:126) : avc:  denied  { read } for  pid=2831 comm=conmand name=puppet dev="dm-1" ino=68665745 scontext=system_u:system_r:conman_t:s0 tcontext=unconfined_u:object_r:user_tmp_t:s0 tclass=lnk_file 

? Is puppet really located in /tmp?


commit 5628a45ad35e812c0d0330dc961755d35502030b
Author: Miroslav Grepl <mgrepl>
Date:   Tue Apr 8 07:07:06 2014 +0200

    Allow conman to resolve DNS and use user ptys

Added to F20.

Comment 8 errata-xmlrpc 2015-03-05 10:38:21 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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