N-089: Red Hat MySQL Vulnerabilities

N-089: Red Hat MySQL Vulnerabilities Privacy and Legal Notice INFORMATION BULLETIN N-089: Red Hat MySQL Vulnerabilities [Red Hat Security Advisory RHSA-2003:093-14] May 2, 2003 17:00 GMT


PROBLEM:	Red Hat announces the release of updated MySQL server packages which fix both a double-free security vulnerability and a root exploit security vulnerability.
PLATFORM:	Red Hat Linux 7.1 Red Hat Linux 7.2 Red Hat Linux 7.3 Red Hat Linux 8.0 Red Hat Linux 9
DAMAGE:	These vulnerabilities if exploited could either cause a denial of service attack or the more serious one, lead to a local user gaining root.
SOLUTION:	Apply patch as instructed in Red Hat's advisory.

VULNERABILITY ASSESSMENT:	The risk is MEDIUM. By exploiting the double-free vulnerability in mysqld attackers with MySQL access could cause a denial of service by creating a carefully crafted client application. MySQL 3.23.55 and earlier creates world-writable files and allows mysql users to gain root privileges by using the "SELECT * INFO OUTFILE" operator to overwrite a configuration file and cause mysql to run as root upon restart.

LINKS:
CIAC BULLETIN:	http://www.ciac.org/ciac/bulletins/n-089.shtml
ORIGINAL BULLETIN:	https://rhn.redhat.com/errata/RHSA-2003-093.html

[***** Start Red Hat Security Advisory RHSA-2003:093-14 *****]

Updated MySQL packages fix vulnerabilities

Advisory: RHSA-2003:093-14 

Last updated on: 2003-05-02 

Affected Products: Red Hat Linux 7.1
                   Red Hat Linux 7.2
                   Red Hat Linux 7.3
                   Red Hat Linux 8.0
                   Red Hat Linux 9 

CVEs (cve.mitre.org): CAN-2003-0073
                      CAN-2003-0150
 
Security Advisory 

Details:

Updated MySQL server packages fix both a double-free security
vulnerability and a root exploit security vulnerability.

[Updated 1 May 2003]
Added updated packages for Red Hat Linux 9, which is vulnerable to
CAN-2003-0150.

MySQL is a multi-user, multi-threaded SQL database server.

A double-free vulnerability in mysqld, for MySQL before version 3.23.55,
allows attackers with MySQL access to cause a denial of service (crash) by
creating a carefully crafted client application. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
CAN-2003-0073 to this issue.

MySQL 3.23.55 and earlier creates world-writable files and allows mysql
users to gain root privileges by using the "SELECT * INFO OUTFILE" operator
to overwrite a configuration file and cause mysql to run as root upon
restart. The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CAN-2003-0150 to this issue.

All users are advised to upgrade to MySQL 3.23.56 contained within this
errata which is not vulnerable to these issues.

In addition to the security fixes, these erratum packages contain a
thread safe client library (libmysqlclient_r).


Updated packages:

Red Hat Linux 7.1 

--------------------------------------------------------------------------------
 
SRPMS: 
mysql-3.23.56-1.71.src.rpm
[ via FTP ] [ via HTTP ]     e7487478940f7fb152bd94dce219a99b 
  
i386: 
mysql-3.23.56-1.71.i386.rpm
[ via FTP ] [ via HTTP ]     7f913c1ef0ad361fba8938270a93c474 
mysql-devel-3.23.56-1.71.i386.rpm
[ via FTP ] [ via HTTP ]     31f5618bb189b0520083210bbc19cdfb 
mysql-server-3.23.56-1.71.i386.rpm
[ via FTP ] [ via HTTP ]     9b1ba658cf7695f7fb626581ad3e700f 
  
Red Hat Linux 7.2 

--------------------------------------------------------------------------------
 
SRPMS: 
mysql-3.23.56-1.72.src.rpm
[ via FTP ] [ via HTTP ]     54f783324c224840fe7ea702fe628ec2 
  
i386: 
mysql-3.23.56-1.72.i386.rpm
[ via FTP ] [ via HTTP ]     d1efdb7796e0444302ee3f426ca06c85 
mysql-devel-3.23.56-1.72.i386.rpm
[ via FTP ] [ via HTTP ]     9b77319f6ecc7e5431efc99e7a291334 
mysql-server-3.23.56-1.72.i386.rpm
[ via FTP ] [ via HTTP ]     ef3c7d3e1bfe3b835ee07b8d2eda7e21 
  
ia64: 
mysql-3.23.56-1.72.ia64.rpm
[ via FTP ] [ via HTTP ]     fcdac19a133fcf7feb34e06877ed1242 
mysql-devel-3.23.56-1.72.ia64.rpm
[ via FTP ] [ via HTTP ]     6d5ed02bee3fe571275b5053cebc6c94 
mysql-server-3.23.56-1.72.ia64.rpm
[ via FTP ] [ via HTTP ]     19737a4c7f39bd37fbd73d0388d2c847 
  
Red Hat Linux 7.3 

--------------------------------------------------------------------------------
 
SRPMS: 
mysql-3.23.56-1.73.src.rpm
[ via FTP ] [ via HTTP ]     ab0e0b34299f786e032e0aa885c046d0 
  
i386: 
mysql-3.23.56-1.73.i386.rpm
[ via FTP ] [ via HTTP ]     7024c33fbdd861d28733d549d29e5d12 
mysql-devel-3.23.56-1.73.i386.rpm
[ via FTP ] [ via HTTP ]     2d9a1b8f6dcc9d336071ec5b889404a6 
mysql-server-3.23.56-1.73.i386.rpm
[ via FTP ] [ via HTTP ]     fb5615fe718df6410a3382d892a56b4c 
  
Red Hat Linux 8.0 

--------------------------------------------------------------------------------
 
SRPMS: 
mysql-3.23.56-1.80.src.rpm
[ via FTP ] [ via HTTP ]     345bdf55ad90f9d00e771e464c4830c7 
  
i386: 
mysql-3.23.56-1.80.i386.rpm
[ via FTP ] [ via HTTP ]     9b339a91222cdbb941c1cbf0d107f10a 
mysql-devel-3.23.56-1.80.i386.rpm
[ via FTP ] [ via HTTP ]     618b4be6bf5744c9cb44c2f008bc2e76 
mysql-server-3.23.56-1.80.i386.rpm
[ via FTP ] [ via HTTP ]     3e0f97fd1a0c1472869b5c390c775163 
  
Red Hat Linux 9 

--------------------------------------------------------------------------------
 
SRPMS: 
mysql-3.23.56-1.9.src.rpm
[ via FTP ] [ via HTTP ]     6f1f4e7f641f6a9e5bbad47d58af2110 
  
i386: 
mysql-3.23.56-1.9.i386.rpm
[ via FTP ] [ via HTTP ]     af46b9de635c8d225fba841105287132 
mysql-devel-3.23.56-1.9.i386.rpm
[ via FTP ] [ via HTTP ]     7b92035afc45f7f8b5a43cea39d7c56f 
mysql-server-3.23.56-1.9.i386.rpm
[ via FTP ] [ via HTTP ]     f03daffeb2c83ff60501e72ebd50e587 
  

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

Please note that this update is available via Red Hat Network. To use Red
Hat Network, launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

Bugs fixed:  (see bugzilla for more information)

77662 - mysql RPM's do not provide a thread safe library
85898 - double-free vulnerability in mysqld < 3.23.55
85971 - possible root exploit in mysqld startup

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0073
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0150
http://www.mysql.com/doc/en/News-3.23.55.html
http://www.mysql.com/doc/en/News-3.23.56.html 

--------------------------------------------------------------------------------
The listed packages are GPG signed by Red Hat, Inc. for security. Our key is 
available at:
http://www.redhat.com/solutions/security/news/publickey/#key 

You can verify each package and see who signed it with the following command:

rpm --checksig -v filename 

If you only wish to verify that each package has not been corrupted or tampered with, 
examine only the md5sum with the following command:

md5sum filename 

The Red Hat security contact is security@redhat.com. More contact details at 
http://www.redhat.com/solutions/security/news/contact.html

[***** End Red Hat Security Advisory RHSA-2003:093-14 *****]

CIAC wishes to acknowledge the contributions of Red Hat for the information contained in this bulletin.

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