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Category:   Application (Database)  >   MySQL Vendors:   MySQL.com
MySQL May Let Remote Authenticated Users Access Restricted Tables or Crash the System
SecurityTracker Alert ID:  1011606
SecurityTracker URL:  http://securitytracker.com/id/1011606
CVE Reference:   CVE-2004-0835, CVE-2004-0837   (Links to External Site)
Updated:  May 5 2009
Original Entry Date:  Oct 11 2004
Impact:   Denial of service via network, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.23
Description:   Two vulnerabilities were reported in MySQL. A remote authenticated user may be able to gain elevated privileges. A remote authenticated user may be able to cause denial of service conditions.

In March 2004, Oleksandr Byelkin reported that an 'alter table [...] rename [...]' command will check the create/insert rights of the old table instead of the new table [CVE: CAN-2004-0835]. As a result, a user may be able to gain access to tables that the user is not authorized to access.

In January 2004, Dean Ellis reported that if multiple threads issue 'alter' commands against 'merge' tables to modify the 'union', the target server may crash [CVE: CAN-2004-0837].

The original bug reports are available at:

http://bugs.mysql.com/bug.php?id=3270
http://bugs.mysql.com/bug.php?id=2408

Impact:   A remote authenticated user may be able to gain elevated privileges.

A remote authenticated user may be able to cause denial of service conditions.

Solution:   The vendor has issued a fix, available via the source tree. Information about accessing the source trees is available at:

http://www.mysql.com/doc/en/Installing_source_tree.html

Vendor URL:  www.mysql.com/ (Links to External Site)
Cause:   Access control error, Exception handling error, State error
Underlying OS:   Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Oct 11 2004 (Debian Issues Fix) MySQL May Let Remote Authenticated Users Access Restricted Tables or Crash the System   (joey@infodrom.org (Martin Schulze))
Debian has released a fix.
Oct 16 2004 (Trustix Issues Fix) MySQL May Let Remote Authenticated Users Access Restricted Tables or Crash the System   (Trustix Security Advisor <tsl@trustix.org>)
Trustix has released a fix.
Oct 20 2004 (Red Hat Issues Fix) MySQL May Let Remote Authenticated Users Access Restricted Tables or Crash the System   (bugzilla@redhat.com)
Red Hat has released a fix for Red Hat Enterprise Linux 2.1.
Oct 21 2004 (Red Hat Issues Fix) MySQL May Let Remote Authenticated Users Access Restricted Tables or Crash the System   (bugzilla@redhat.com)
Red Hat has released a fix for Red Hat Enterprise Linux 3.
Nov 2 2004 (Mandrake Issues Fix) MySQL May Let Remote Authenticated Users Access Restricted Tables or Crash the System   (Mandrake Linux Security Team <security@linux-mandrake.com>)
Mandrake has released a fix.
Nov 19 2004 (Conectiva Issues Fix) MySQL May Let Remote Authenticated Users Access Restricted Tables or Crash the System   (Conectiva Updates <secure@conectiva.com.br>)
Conectiva has issued a fix.
Aug 13 2005 (Sun Issues Fix) MySQL May Let Remote Authenticated Users Access Restricted Tables or Crash the System
Sun has issued a fix.



 Source Message Contents

Date:  Mon, 11 Oct 2004 05:46:31 -0400
Subject:  [none]


Several vulnerabilities were reported in MySQL.

Debian reported the following flaws [quoted]:

CAN-2004-0835

    Oleksandr Byelkin noticed that ALTER TABLE ... RENAME checks
    CREATE/INSERT rights of the old table instead of the new one.

CAN-2004-0836

    Lukasz Wojtow noticed a buffer overrun in the mysql_real_connect
    function.

CAN-2004-0837

    Dean Ellis noticed that multiple threads ALTERing the same (or
    different) MERGE tables to change the UNION can cause the server
    to crash or stall.
 
 


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