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Bug 1509277 - SELinux prevents several domains from doing dac_read_search
Summary: SELinux prevents several domains from doing dac_read_search
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: selinux-policy
Version: 7.5-Alt
Hardware: All
OS: Linux
unspecified
urgent
Target Milestone: rc
: ---
Assignee: Lukas Vrabec
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On:
Blocks: 1477564
TreeView+ depends on / blocked
 
Reported: 2017-11-03 13:21 UTC by Steve Best
Modified: 2018-04-10 12:46 UTC (History)
7 users (show)

Fixed In Version: selinux-policy-3.13.1-176.el7
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-04-10 12:46:03 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)
console (97.66 KB, text/plain)
2017-11-03 13:21 UTC, Steve Best
no flags Details


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2018:0763 0 None None None 2018-04-10 12:46:56 UTC

Description Steve Best 2017-11-03 13:21:44 UTC
Created attachment 1347348 [details]
console

Description of problem:
There are numerous audit msgs on RHEL 7.5-ALT nightly 
[   45.896682] audit: type=1400 audit(1509723988.131:6): avc:  denied  { execute
_no_trans } for  pid=2945 comm="chrony-helper" path="/usr/bin/chronyc" dev="dm-0
" ino=34078725 scontext=system_u:system_r:chronyd_t:s0 tcontext=system_u:object_
r:chronyc_exec_t:s0 tclass=file permissive=0
[   47.600873] audit: type=1400 audit(1509723989.841:7): avc:  denied  { dac_rea
d_search } for  pid=3099 comm="find" capability=2  scontext=system_u:system_r:po
stfix_master_t:s0 tcontext=system_u:system_r:postfix_master_t:s0 tclass=capabili
ty permissive=0
[   47.600966] audit: type=1400 audit(1509723989.841:8): avc:  denied  { dac_rea
d_search } for  pid=3099 comm="find" capability=2  scontext=system_u:system_r:po
stfix_master_t:s0 tcontext=system_u:system_r:postfix_master_t:s0 tclass=capabili
ty permissive=0

Version-Release number of selected component (if applicable):


How reproducible:
100%

Steps to Reproduce:
1.Using RHEL-ALT-7.5-20171103.n.0
2.look at console log 
3.

Actual results:
numerous audit avc

Expected results:
no avcs

Additional info:

Comment 2 Steve Grubb 2017-11-04 02:25:16 UTC
This is a bit like opening a bug against rsyslog and saying there's messages in my logs. :-)

If I understand it right, you are seeing AVC's which might indicate there is a problem with selinux policy because there should be no AVC's. If this is correct, this bz should be transferred to selinux-policy so they can fix the policy to match system activity.

Comment 3 Milos Malik 2017-11-06 09:08:52 UTC
When the attachment file is piped into audit2allow, audit2allow says that following rules are missing:

allow getty_t self:capability dac_read_search;
allow passwd_t self:capability dac_read_search;
allow postfix_master_t self:capability dac_read_search;

Comment 6 Ilari Stenroth 2018-02-17 08:27:39 UTC
I'm suggesting this as a duplicate of #1532022.

Comment 9 errata-xmlrpc 2018-04-10 12:46:03 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://access.redhat.com/errata/RHBA-2018:0763


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