setroubleshooter not filing bugs, is there another way

Antonio Olivares olivares14031 at yahoo.com
Tue Aug 18 12:29:16 UTC 2009


> > Thanks Tom for your guidance.  Tomorrow as I get
> to work and get the
> > alert(s) will try to capture following your advice and
> mail them to
> > list.
> 
> Bear in mind that if you're running auditd, the messages
> will be
> in /var/log/audit/audit.log rather than /var/log/messages.
> 
> Paul.
> 
Thanks Paul :)

Tom's advice worked.  Here's the denied avc

[olivares at localhost ~]$ su -
Password: 
[root at localhost ~]# tail -f /var/log/messages 
Aug 18 07:26:02 localhost kernel: [drm] TV-14: set mode NTSC 480i 0
Aug 18 07:26:02 localhost kernel: [drm] TV-14: set mode NTSC 480i 0
Aug 18 07:26:02 localhost kernel: [drm] TV-14: set mode NTSC 480i 0
Aug 18 07:26:02 localhost kernel: [drm] TV-14: set mode NTSC 480i 0
Aug 18 07:26:03 localhost setroubleshoot: Your system may be seriously compromised! For complete SELinux messages. run sealert -l 70b576a6-6313-4753-9403-22ac883c585a
Aug 18 07:26:03 localhost setroubleshoot: Your system may be seriously compromised! For complete SELinux messages. run sealert -l 70b576a6-6313-4753-9403-22ac883c585a
Aug 18 07:26:04 localhost kernel: [drm] TV-14: set mode NTSC 480i 0
Aug 18 07:26:04 localhost kernel: [drm] TV-14: set mode NTSC 480i 0
Aug 18 07:26:04 localhost kernel: [drm] TV-14: set mode NTSC 480i 0
Aug 18 07:26:05 localhost kernel: [drm] TV-14: set mode NTSC 480i 0
^C
[root at localhost ~]# 
[root at localhost ~]# 
[root at localhost ~]# sealert -l 70b576a6-6313-4753-9403-22ac883c585a

Summary:

Your system may be seriously compromised!

Detailed Description:

SELinux has denied the explorer.exe the ability to mmap low area of the kernel
address space. The ability to mmap a low area of the address space, as
configured by /proc/sys/kernel/mmap_min_addr. Preventing such mappings helps
protect against exploiting null deref bugs in the kernel. All applications that
need this access should have already had policy written for them. If a
compromised application tries modify the kernel this AVC would be generated.
This is a serious issue. Your system may very well be compromised.

Allowing Access:

Contact your security administrator and report this issue.

Additional Information:

Source Context                unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023
Target Context                unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023
Target Objects                None [ memprotect ]
Source                        wine-preloader
Source Path                   /usr/bin/wine-preloader
Port                          <Unknown>
Host                          localhost.localdomain
Source RPM Packages           wine-core-1.1.26-1.fc12
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.26-8.fc12
Selinux Enabled               True
Policy Type                   targeted
MLS Enabled                   True
Enforcing Mode                Enforcing
Plugin Name                   mmap_zero
Host Name                     localhost.localdomain
Platform                      Linux localhost.localdomain
                              2.6.31-0.125.4.2.rc5.git2.fc12.i686 #1 SMP Tue Aug
                              11 21:20:05 EDT 2009 i686 i686
Alert Count                   86
First Seen                    Wed Aug 12 17:09:09 2009
Last Seen                     Tue Aug 18 07:26:03 2009
Local ID                      70b576a6-6313-4753-9403-22ac883c585a
Line Numbers                  

Raw Audit Messages            

node=localhost.localdomain type=AVC msg=audit(1250598363.591:37): avc:  denied  { mmap_zero } for  pid=1861 comm="explorer.exe" scontext=unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023 tclass=memprotect

node=localhost.localdomain type=SYSCALL msg=audit(1250598363.591:37): arch=40000003 syscall=192 success=no exit=-13 a0=0 a1=110000 a2=0 a3=32 items=0 ppid=1 pid=1861 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="explorer.exe" exe="/usr/bin/wine-preloader" subj=unconfined_u:unconfined_r:wine_t:s0-s0:c0.c1023 key=(null)


Thanks,

Antonio 

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