[Fc6] was: Re: [Samba] [SECURITY] Buffer overrun in send_mailslot()

[simo]

Fedora 7 and 8 packages are being released but as you may know FC6 has
reached EOL just recently.

As I think this is an important security problem I decided to release
new packages for FC6 so that people that have not yet finished their
migration to newer supported Fedora releases can buy some more time.

This is a one off service I felt compelled to release to help people, I
am not going to do regular releases for FC6.

Packages here:
http://simo.fedoraproject.org/samba

Simo.


On Mon, 2007-12-10 at 07:49 -0600, Gerald (Jerry) Carter wrote:
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>  
>  ==========================================================
>  ==
>  == Subject:     Boundary failure in GETDC mailslot
>  ==              processing can result in a buffer overrun
>  ==
>  == CVE ID#:     CVE-2007-6015
>  ==
>  == Versions:    Samba 3.0.0 - 3.0.27a (inclusive)
>  ==
>  == Summary:     Specifically crafted GETDC mailslot requests
>  ==              can trigger a boundary error in the domain
>  ==              controller GETDC mail slot support which
>  ==              can be remotely exploited to execute arbitrary
>  ==              code.
>  ==
>  ==========================================================
>  
>  ===========
>  Description
>  ===========
>  
>  Secunia Research reported a vulnerability that allows for
>  the execution of arbitrary code in nmbd.  This defect is
>  only be exploited when the "domain logons" parameter has
>  been enabled in smb.conf.
>  
>  
>  ==================
>  Patch Availability
>  ==================
>  
>  A patch addressing this defect has been posted to
>  
>    http://www.samba.org/samba/security/
>  
>  Additionally, Samba 3.0.28 has been issued as a security
>  release to correct the defect.
>  
>  
>  ==========
>  Workaround
>  ==========
>  
>  Samba administrators may avoid this security issue by disabling
>  both the "domain logons" options in the server's smb.conf file.
>  Note that this will disable all domain controller features as
>  well.
>  
>  
>  =======
>  Credits
>  =======
>  
>  This vulnerability was reported to Samba developers by
>  Alin Rad Pop, Secunia Research.
>  
>  The time line is as follows:
>  
>  * Nov 22, 2007: Initial report to security(a)samba.org.
>  * Nov 22, 2007: First response from Samba developers confirming
>    the bug along with a proposed patch.
>  * Dec 10, 2007: Public security advisory made available.
>  
>  
>  ==========================================================
>  == Our Code, Our Bugs, Our Responsibility.
>  == The Samba Team
>  ==========================================================
>  
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-- 
Simo Sorce
Samba Team GPL Compliance Officer <simo(a)samba.org&gt;
Senior Software Engineer at Red Hat Inc. <ssorce(a)redhat.com&gt;