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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Check for the version of the mysql packages
Detailed Explanation for this Vulnerability Assessment
An updated mysql-server package that fixes various security issues is now
available in the Red Hat Enterprise Linux 3 Extras channel of Red Hat
MySQL is a multi-user, multi-threaded SQL database server.
A number of security issues that affect the mysql-server package have been
reported. Although Red Hat Enterprise Linux 3 does not ship with the
mysql-server package, the affected package is available from the Red Hat
Network Extras channel.
Oleksandr Byelkin discovered that "ALTER TABLE ... RENAME" checked
the CREATE/INSERT rights of the old table instead of the new one. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CVE-2004-0835 to this issue.
Lukasz Wojtow discovered a buffer overrun in the mysql_real_connect
function. In order to exploit this issue a possible hacker would need to force
the use of a malicious DNS server (CVE-2004-0836).
Dean Ellis discovered that multiple threads ALTERing the same (or
different) MERGE tables to change the UNION could cause the server to crash
or stall (CVE-2004-0837).
Sergei Golubchik discovered that if a user is granted rights to a
database with a name containing an underscore ("_"), the user also gains
the ability to grant rights to other databases with similar names
Users of mysql-server should upgrade to these erratum packages, which
correct these issues.
Solution : http://rhn.redhat.com/errata/RHSA-2004-611.html
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security
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