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Bug 1626805 - SELinux is preventing /usr/lib/systemd/systemd-resolved from 'name_bind' accesses on the udp_socket port 5353.
Summary: SELinux is preventing /usr/lib/systemd/systemd-resolved from 'name_bind' acce...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 29
Hardware: x86_64
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Lukas Vrabec
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: abrt_hash:b8b933106f3700f602be9096faf...
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-09-08 22:52 UTC by sedrubal
Modified: 2018-10-05 16:01 UTC (History)
4 users (show)

Fixed In Version: selinux-policy-3.14.2-35.fc29
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-10-05 16:01:30 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description sedrubal 2018-09-08 22:52:20 UTC 
Description of problem:
SELinux is preventing /usr/lib/systemd/systemd-resolved from 'name_bind' accesses on the udp_socket port 5353.

*****  Plugin catchall (100. confidence) suggests   **************************

If you believe that systemd-resolved should be allowed name_bind access on the port 5353 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:
# ausearch -c 'systemd-resolve' --raw | audit2allow -M my-systemdresolve
# semodule -X 300 -i my-systemdresolve.pp

Additional Information:
Source Context                system_u:system_r:systemd_resolved_t:s0
Target Context                system_u:object_r:howl_port_t:s0
Target Objects                port 5353 [ udp_socket ]
Source                        systemd-resolve
Source Path                   /usr/lib/systemd/systemd-resolved
Port                          5353
Host                          (removed)
Source RPM Packages           systemd-239-3.fc29.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.14.2-32.fc29.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.18.5-300.fc29.x86_64 #1 SMP Fri
                              Aug 24 17:16:35 UTC 2018 x86_64 x86_64
Alert Count                   75
First Seen                    2018-09-07 18:01:03 CEST
Last Seen                     2018-09-09 00:26:09 CEST
Local ID                      322b2f9c-f349-43a9-b04a-dd39bb810705

Raw Audit Messages
type=AVC msg=audit(1536445569.401:28497): avc:  denied  { name_bind } for  pid=963 comm="systemd-resolve" src=5353 scontext=system_u:system_r:systemd_resolved_t:s0 tcontext=system_u:object_r:howl_port_t:s0 tclass=udp_socket permissive=0


type=SYSCALL msg=audit(1536445569.401:28497): arch=x86_64 syscall=bind success=no exit=EACCES a0=f a1=7fff8ad70880 a2=1c a3=557aff680428 items=0 ppid=1 pid=963 auid=4294967295 uid=193 gid=193 euid=193 suid=193 fsuid=193 egid=193 sgid=193 fsgid=193 tty=(none) ses=4294967295 comm=systemd-resolve exe=/usr/lib/systemd/systemd-resolved subj=system_u:system_r:systemd_resolved_t:s0 key=(null)

Hash: systemd-resolve,systemd_resolved_t,howl_port_t,udp_socket,name_bind

Version-Release number of selected component:
selinux-policy-3.14.2-32.fc29.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.9.5
hashmarkername: setroubleshoot
kernel:         4.18.5-300.fc29.x86_64
type:           libreport

Potential duplicate: bug 1430520
Comment 1 Fedora Update System 2018-09-20 10:39:39 UTC 
selinux-policy-3.14.2-35.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2018-d4ddac7543
Comment 2 Fedora Update System 2018-09-20 16:19:21 UTC 
selinux-policy-3.14.2-35.fc29 has been pushed to the Fedora 29 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-d4ddac7543
Comment 3 Fedora Update System 2018-10-05 16:01:30 UTC 
selinux-policy-3.14.2-35.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report.
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