Attachment 224221 Details for Bug 327511 – execmem selinux alter about geomview

execmem selinux alter about geomview

selinux_alert_geomview_execmem.txt (text/plain), 2.62 KB, created by Laurent Rineau on 2007-10-11 11:42:07 UTC

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Creator: Laurent Rineau

Created: 2007-10-11 11:42:07 UTC

Size: 2.62 KB

patch

obsolete

>Summary
>    SELinux is preventing /usr/libexec/geomview/gvx from changing a writable
>    memory segment executable.
>
>Detailed Description
>    The /usr/libexec/geomview/gvx application attempted to change the access
>    protection of memory (e.g., allocated using malloc).  This is a potential
>    security problem.  Applications should not be doing this. Applications are
>    sometimes coded incorrectly and request this permission.  The
>    http://people.redhat.com/drepper/selinux-mem.html web page explains how to
>    remove this requirement.  If /usr/libexec/geomview/gvx does not work and you
>    need it to work, you can configure SELinux temporarily to allow this access
>    until the application is fixed. Please file a
>    http://bugzilla.redhat.com/bugzilla/enter_bug.cgi against this package.
>
>Allowing Access
>    If you trust /usr/libexec/geomview/gvx to run correctly, you can change the
>    context of the executable to unconfined_execmem_exec_t. "chcon -t
>    unconfined_execmem_exec_t /usr/libexec/geomview/gvx". 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 unconfined_execmem_exec_t
>    /usr/libexec/geomview/gvx"
>
>    The following command will allow this access:
>    chcon -t unconfined_execmem_exec_t /usr/libexec/geomview/gvx
>
>Additional Information        
>
>Source Context                system_u:system_r:unconfined_t:s0
>Target Context                system_u:system_r:unconfined_t:s0
>Target Objects                None [ process ]
>Affected RPM Packages         geomview-1.9.4-4.fc8 [application]
>Policy RPM                    selinux-policy-3.0.8-18.fc8
>Selinux Enabled               True
>Policy Type                   targeted
>MLS Enabled                   True
>Enforcing Mode                Permissive
>Plugin Name                   plugins.allow_execmem
>Host Name                     schtroumpf
>Platform                      Linux schtroumpf 2.6.23-0.214.rc8.git2.fc8 #1 SMP
>                              Fri Sep 28 17:38:00 EDT 2007 i686 i686
>Alert Count                   74
>First Seen                    Sun 30 Sep 2007 10:26:15 PM CEST
>Last Seen                     Thu 11 Oct 2007 01:27:56 PM CEST
>Local ID                      d30c3358-7861-4913-96b8-f8fd15922686
>Line Numbers                  
>
>Raw Audit Messages            
>
>avc: denied { execmem } for comm=gvx egid=500 euid=500
>exe=/usr/libexec/geomview/gvx exit=131772416 fsgid=500 fsuid=500 gid=500 items=0
>pid=3660 scontext=system_u:system_r:unconfined_t:s0 sgid=500
>subj=system_u:system_r:unconfined_t:s0 suid=500 tclass=process
>tcontext=system_u:system_r:unconfined_t:s0 tty=pts5 uid=500
>

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Attachments on bug 327511: 224211 | 224221