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      SCO Security Advisory

Subject:    UnixWare 7.1.4 : MySQL User-Defined Function Buffer Overflow Vulnerability
Advisory number:   SCOSA-2006.18
Issue date:     2006 April 09
Cross reference:  fz533383
      CVE-2005-2558 
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1. Problem Description

  Stack-based buffer overflow in the init_syms function in
  MySQL 4.0 before 4.0.25, 4.1 before 4.1.13, and 5.0 before
  5.0.7-beta allows remote authenticated users who can create
  user-defined functions to execute arbitrary code via a long
  function_name field.
  
  MySQL is prone to a buffer overflow vulnerability. This issue
  is due to insufficient bounds checking of data supplied as
  an argument in a user-defined function.
  
  This issue could be exploited by a database user with
  sufficient access to create a user-defined function. It may
  also be possible to exploit this issue trhough latent SQL
  injection vulnerabilities in third-party applications that
  use the database as a backend.
  
  Successful exploitation will result in execution of arbitrary
  code in the context of the database server process.
  
  The Common Vulnerabilities and Exposures project
  (cve.mitre.org) has assigned the name CVE-2005-2558 to
  this issue.


2. Vulnerable Supported Versions

  System        Binaries
  ----------------------------------------------------------------------
  UnixWare 7.1.4       MySQL package


3. Solution

  The proper solution is to install the latest packages.


4. UnixWare 7.1.4

  4.1 Location of Fixed Binaries

  ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2006.18


  4.2 Verification

  MD5 (MySQL-5.0.19.pkg) = 4c28fe91016cc1f58cb0c4565839b698

  md5 is available for download from
    ftp://ftp.sco.com/pub/security/tools


  4.3 Installing Fixed Binaries

  Upgrade the affected binaries with the following sequence:

  Download MySQL-5.0.19.pkg to the /var/spool/pkg directory
  Download README-MySQL-5.0.19-UW7 to the /tmp directory

  View the MySQL 5.0.19 installation notes in the file
  /tmp/README-MySQL-5.0.19-UW7

  Install the MySQL 5.0.19 package with the command
  # pkgadd -d /var/spool/pkg/MySQL-5.0.19.pkg


5. References

  Specific references for this advisory:
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2558
    http://www.securityfocus.com/bid/14509

  SCO security resources:
    http://www.sco.com/support/security/index.html

  SCO security advisories via email
    http://www.sco.com/support/forums/security.html

  This security fix closes SCO incidents fz533383.


6. Disclaimer

  SCO is not responsible for the misuse of any of the information
  we provide on this website and/or through our security
  advisories. Our advisories are a service to our customers intended
  to promote secure installation and use of SCO products.


7. Acknowledgments

  Discovery of this vulnerability is credited to Reid Borsuk of
  Application Security Inc.

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