Attachment 294250 Details for Bug 431900 – selinux_alert_03

selinux_alert_03

selinux_alert_03.txt (text/plain), 4.04 KB, created by Valent Turkovic on 2008-02-07 18:26:24 UTC

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Creator: Valent Turkovic

Created: 2008-02-07 18:26:24 UTC

Size: 4.04 KB

patch

obsolete

>
>Summary:
>
>SELinux is preventing gst-inspect-0.1 from loading
>/home/fedora/.gstreamer-0.10/fluendo-megabundle-3.i386.dir.VGSO7q/fluendo-megabundle-i386/libgstflumpeg4videodec.so
>which requires text relocation.
>
>Detailed Description:
>
>The gst-inspect-0.1 application attempted to load
>/home/fedora/.gstreamer-0.10/fluendo-megabundle-3.i386.dir.VGSO7q/fluendo-megabundle-i386/libgstflumpeg4videodec.so
>which requires text relocation. This is a potential security problem. Most
>libraries do not need this permission. Libraries are sometimes coded incorrectly
>and request this permission. The SELinux Memory Protection Tests
>(http://people.redhat.com/drepper/selinux-mem.html) web page explains how to
>remove this requirement. You can configure SELinux temporarily to allow
>/home/fedora/.gstreamer-0.10/fluendo-megabundle-3.i386.dir.VGSO7q/fluendo-megabundle-i386/libgstflumpeg4videodec.so
>to use relocation as a workaround, until the library is fixed. Please file a bug
>report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) against this package.
>
>Allowing Access:
>
>If you trust
>/home/fedora/.gstreamer-0.10/fluendo-megabundle-3.i386.dir.VGSO7q/fluendo-megabundle-i386/libgstflumpeg4videodec.so
>to run correctly, you can change the file context to textrel_shlib_t. "chcon -t
>textrel_shlib_t
>'/home/fedora/.gstreamer-0.10/fluendo-megabundle-3.i386.dir.VGSO7q/fluendo-megabundle-i386/libgstflumpeg4videodec.so'"
>You must also change the default file context files on the system in order to
>preserve them even on a full relabel. "semanage fcontext -a -t textrel_shlib_t
>'/home/fedora/.gstreamer-0.10/fluendo-megabundle-3.i386.dir.VGSO7q/fluendo-megabundle-i386/libgstflumpeg4videodec.so'"
>
>The following command will allow this access:
>
>chcon -t textrel_shlib_t '/home/fedora/.gstreamer-0.10/fluendo-megabundle-3.i386.dir.VGSO7q/fluendo-megabundle-i386/libgstflumpeg4videodec.so'
>
>Additional Information:
>
>Source Context                unconfined_u:unconfined_r:unconfined_execmem_t:s0-
>                              s0:c0.c1023
>Target Context                unconfined_u:object_r:user_home_t:s0
>Target Objects                /home/fedora/.gstreamer-0.10/fluendo-
>                              megabundle-3.i386.dir.VGSO7q/fluendo-
>                              megabundle-i386/libgstflumpeg4videodec.so [ file ]
>Source                        gst-inspect-0.1
>Source Path                   /usr/bin/gst-inspect-0.10
>Port                          <Unknown>
>Host                          localhost.localdomain
>Source RPM Packages           gstreamer-0.10.17-1.fc9
>Target RPM Packages           
>Policy RPM                    selinux-policy-3.2.6-5.fc9
>Selinux Enabled               True
>Policy Type                   targeted
>MLS Enabled                   True
>Enforcing Mode                Enforcing
>Plugin Name                   allow_execmod
>Host Name                     localhost.localdomain
>Platform                      Linux localhost.localdomain 2.6.24-17.fc9 #1 SMP
>                              Mon Feb 4 19:02:27 EST 2008 i686 i686
>Alert Count                   1
>First Seen                    Thu 07 Feb 2008 07:07:30 PM CET
>Last Seen                     Thu 07 Feb 2008 07:07:30 PM CET
>Local ID                      791fb17a-ab2f-4140-8cb1-594ac8aad877
>Line Numbers                  
>
>Raw Audit Messages            
>
>host=localhost.localdomain type=AVC msg=audit(1202407650.437:33): avc:  denied  { execmod } for  pid=4906 comm="gst-inspect-0.1" path="/home/fedora/.gstreamer-0.10/fluendo-megabundle-3.i386.dir.VGSO7q/fluendo-megabundle-i386/libgstflumpeg4videodec.so" dev=dm-1 ino=311362 scontext=unconfined_u:unconfined_r:unconfined_execmem_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file
>
>host=localhost.localdomain type=SYSCALL msg=audit(1202407650.437:33): arch=40000003 syscall=125 success=no exit=-13 a0=637000 a1=8f000 a2=5 a3=bf91f380 items=0 ppid=4592 pid=4906 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) comm="gst-inspect-0.1" exe="/usr/bin/gst-inspect-0.10" subj=unconfined_u:unconfined_r:unconfined_execmem_t:s0-s0:c0.c1023 key=(null)
>
>

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