oss-security - Re: mysql-5.1.41

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Message-ID: <4B0C0AEC.4000301@redhat.com>
Date: Tue, 24 Nov 2009 17:33:48 +0100
From: Jan Lieskovsky <jlieskov@...hat.com>
To: oss-security@...ts.openwall.com
CC: coley <coley@...re.org>, MySQL Security Team <security@...ql.com>
Subject: Re: mysql-5.1.41

Hi Josh,

   looked further into these issues.

A, wrt http://bugs.mysql.com/bug.php?id=32167

You are right, that  CVE-2008-2079 was originally assigned to:
    http://bugs.mysql.com/bug.php?id=32167

On "[6 May 2008 11:16] Sergei Golubchik" states:

please, note in the manual that it's CVE-2008-2079

But last comment on this bug mentions:

<quote>

[12 Nov 4:50] Paul DuBois

Noted in 5.1.41, 5.5.0, 6.0.14 changelogs.

Additional corrections were made for the symlink-related privilege
problem originally addressed in MySQL 5.1.24. The original fix did
not correctly handle the data directory path name if it contained
symlinked directories in its path, and the check was made only at
table-creation time, not at table-opening time later.

</quote>

Also MySQL-5.1.41 news file now contains:

Important Change: Security Fix: Additional
corrections were made for the symlink-related
privilege problem originally addressed in MySQL
5.1.24. The original fix did not correctly handle
the data directory path name if it contained
symlinked directories in its path, and the check
was made only at table-creation time, not at
table-opening time later. (Bug#32167, CVE-2008-2079)"

Consequence:
===========

So I think we will need a new CVE id as incomplete fix for CVE-2009-2079.
Relevant patch is here (2845 Georgi Kodinov	2009-11-03)
   http://lists.mysql.com/commits/89940

Cc-ed MySQL security team to confirm this assumption.

B, wrt to http://bugs.mysql.com/bug.php?id=39277

   This is potential security issue, but the proposed patch didn't
made it neither into 5.0.88, nor into 5.1.41 releases.
In fact it was committed only to 6.0.9-alpha release
("Pushed into 6.0.9-alpha" comment from that bug).
So we will need to wait a little bit for patch "stabilization".

Conclusion - so two CVE ids are needed:
---------------------------------------
1, One for incomplete fix for CVE-2009-2079 issue) --
    "and the check was made only at table-creation time, not at table-opening time later"

      http://bugs.mysql.com/bug.php?id=32167
      http://lists.mysql.com/commits/89940

2, The second one for the "MySQL clients linked against OpenSSL did not check
    server certificates presented by a server linked against yaSSL" issue

      http://bugs.mysql.com/bug.php?id=47320

Sergei, please confirm / disprove the above.

Thanks && Regards, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Response Team

Josh Bressers wrote:
> As best as I can tell, we only need one CVE id (two issues, but one already has
> an id).
> 
> MySQL clients before version 5.1.41 linked against OpenSSL would not properly
> check certificates presented by a MySQL server linked against yaSSL. This could
> possibly lead to a man in the middle type of attack on the SSL connection.
> 
> http://bugs.mysql.com/bug.php?id=47320
> http://dev.mysql.com/doc/refman/5.1/en/news-5-1-41.html
> 
> Thanks.
>

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