Bug 904854

Summary: SELinux is preventing gst-plugin-scan from 'execmod' accesses on the file /usr/lib/libmpg123.so.0.36.4.
Product: [Fedora] Fedora Reporter: Vedran Miletić <vedran>
Component: selinux-policyAssignee: Miroslav Grepl <mgrepl>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 18CC: dominick.grift, dwalsh, jam, mgrepl
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Unspecified   
Whiteboard: abrt_hash:3fc61f83087a0b7fe2926e687b0889044af3b62d8cdc4085f1d135f0adf4dd58
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-02-08 02:25:08 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Vedran Miletić 2013-01-27 22:13:47 UTC
Description of problem:
Upon opening an .mp4 file in Firefox, installation gstreamer plugins happens and SELinux reports this.
SELinux is preventing gst-plugin-scan from 'execmod' accesses on the file /usr/lib/libmpg123.so.0.36.4.

*****  Plugin allow_execmod (91.4 confidence) suggests  **********************

If you want to allow gst-plugin-scan to have execmod access on the libmpg123.so.0.36.4 file
Then you need to change the label on '/usr/lib/libmpg123.so.0.36.4'
Do
# semanage fcontext -a -t textrel_shlib_t '/usr/lib/libmpg123.so.0.36.4'
# restorecon -v '/usr/lib/libmpg123.so.0.36.4'

*****  Plugin catchall (9.59 confidence) suggests  ***************************

If you believe that gst-plugin-scan should be allowed execmod access on the libmpg123.so.0.36.4 file 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 gst-plugin-scan /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c
                              0.c1023
Target Context                system_u:object_r:lib_t:s0
Target Objects                /usr/lib/libmpg123.so.0.36.4 [ file ]
Source                        gst-plugin-scan
Source Path                   gst-plugin-scan
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           libmpg123-1.14.3-1.fc18.i686
Policy RPM                    selinux-policy-3.11.1-73.fc18.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.7.4-204.fc18.i686 #1 SMP Wed Jan
                              23 17:08:59 UTC 2013 i686 i686
Alert Count                   1
First Seen                    2013-01-27 21:37:35 CET
Last Seen                     2013-01-27 21:37:35 CET
Local ID                      1ebc59b5-d0dc-4f21-b1e8-209691307a9a

Raw Audit Messages
type=AVC msg=audit(1359319055.406:362): avc:  denied  { execmod } for  pid=11716 comm="gst-plugin-scan" path="/usr/lib/libmpg123.so.0.36.4" dev="sda3" ino=1322172 scontext=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lib_t:s0 tclass=file


Hash: gst-plugin-scan,mozilla_plugin_t,lib_t,file,execmod

audit2allow

#============= mozilla_plugin_t ==============
allow mozilla_plugin_t lib_t:file execmod;

audit2allow -R

#============= mozilla_plugin_t ==============
allow mozilla_plugin_t lib_t:file execmod;


Additional info:
hashmarkername: setroubleshoot
kernel:         3.7.4-204.fc18.i686
type:           libreport

Potential duplicate: bug 836692

Comment 1 Miroslav Grepl 2013-01-28 16:23:29 UTC
# chcon -t textrel_shlib_t '/usr/lib/libmpg123.so.0.36.4'

Comment 2 Fedora Update System 2013-01-31 13:19:34 UTC
selinux-policy-3.11.1-74.fc18 has been submitted as an update for Fedora 18.
https://admin.fedoraproject.org/updates/selinux-policy-3.11.1-74.fc18

Comment 3 Fedora Update System 2013-02-01 16:40:27 UTC
Package selinux-policy-3.11.1-74.fc18:
* should fix your issue,
* was pushed to the Fedora 18 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing selinux-policy-3.11.1-74.fc18'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2013-1693/selinux-policy-3.11.1-74.fc18
then log in and leave karma (feedback).

Comment 4 Fedora Update System 2013-02-08 02:25:11 UTC
selinux-policy-3.11.1-74.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 Jeff MacDonald 2013-08-20 18:04:02 UTC
Greetings,

I am runninng selinux-policy-3.11.1-100.fc18.noarch and I get this AVC when clicking on an mp3 file.

Regards,
J

Comment 6 Miroslav Grepl 2013-08-22 15:03:39 UTC
What does

# matchpathcon /usr/lib/libmpg123.so.0.36.4

Comment 7 Jeff MacDonald 2013-08-22 17:00:37 UTC
[~] [DING!] [jam@cyclops] % matchpathcon /usr/lib/libmpg123.so.0.36.4
/usr/lib/libmpg123.so.0.36.4    system_u:object_r:lib_t:s0