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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200410-22">
<title>MySQL: Multiple vulnerabilities</title>
<synopsis>
Several vulnerabilities including privilege abuse, Denial of Service, and
potentially remote arbitrary code execution have been discovered in MySQL.
</synopsis>
<product type="ebuild">MySQL</product>
<announced>October 24, 2004</announced>
<revised>October 24, 2004: 01</revised>
<bug>67062</bug>
<access>remote</access>
<affected>
<package name="dev-db/mysql" auto="yes" arch="*">
<unaffected range="ge">4.0.21</unaffected>
<vulnerable range="lt">4.0.21</vulnerable>
</package>
</affected>
<background>
<p>
MySQL is a popular open-source, multi-threaded, multi-user SQL database
server.
</p>
</background>
<description>
<p>
The following vulnerabilities were found and fixed in MySQL:
</p>
<p>
Oleksandr Byelkin found that ALTER TABLE ... RENAME checks CREATE/INSERT
rights of the old table instead of the new one (CAN-2004-0835). Another
privilege checking bug allowed users to grant rights on a database they had
no rights on.
</p>
<p>
Dean Ellis found a defect where multiple threads ALTERing the MERGE tables
to change the UNION could cause the server to crash (CAN-2004-0837).
Another crash was found in MATCH ... AGAINST() queries with missing closing
double quote.
</p>
<p>
Finally, a buffer overrun in the mysql_real_connect function was found by
Lukasz Wojtow (CAN-2004-0836).
</p>
</description>
<impact type="high">
<p>
The privilege checking issues could be used by remote users to bypass their
rights on databases. The two crashes issues could be exploited by a remote
user to perform a Denial of Service attack on MySQL server. The buffer
overrun issue could also be exploited as a Denial of Service attack, and
may allow to execute arbitrary code with the rights of the MySQL daemon
(typically, the "mysql" user).
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All MySQL users should upgrade to the latest version:
</p>
<code>
# emerge sync
# emerge -pv ">=dev-db/mysql-4.0.21"
# emerge ">=dev-db/mysql-4.0.21"</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0835">CAN-2004-0835</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0836">CAN-2004-0836</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0837">CAN-2004-0837</uri>
<uri link="http://bugs.mysql.com/bug.php?id=3933">Privilege granting bug</uri>
<uri link="http://bugs.mysql.com/bug.php?id=3870">MATCH ... AGAINST crash bug</uri>
</references>
<metadata tag="requester" timestamp="Tue, 19 Oct 2004 17:45:22 +0000">
koon
</metadata>
<metadata tag="bugReady" timestamp="Fri, 22 Oct 2004 20:06:53 +0000">
koon
</metadata>
<metadata tag="submitter" timestamp="Sat, 23 Oct 2004 08:53:17 +0000">
koon
</metadata>
</glsa>