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Gentoo Linux Security Advisory GLSA 200410-22 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: MySQL: Multiple vulnerabilities |
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Date: October 24, 2004 |
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Bugs: #67062 |
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ID: 200410-22 |
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Synopsis |
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======== |
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|
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Several vulnerabilities including privilege abuse, Denial of Service, |
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and potentially remote arbitrary code execution have been discovered |
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in MySQL. |
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|
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Background |
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========== |
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|
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MySQL is a popular open-source, multi-threaded, multi-user SQL database |
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server. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 dev-db/mysql < 4.0.21 >= 4.0.21 |
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|
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Description |
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=========== |
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|
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The following vulnerabilities were found and fixed in MySQL: |
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|
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Oleksandr Byelkin found that ALTER TABLE ... RENAME checks |
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CREATE/INSERT rights of the old table instead of the new one |
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(CAN-2004-0835). Another privilege checking bug allowed users to grant |
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rights on a database they had no rights on. |
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|
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Dean Ellis found a defect where multiple threads ALTERing the MERGE |
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tables to change the UNION could cause the server to crash |
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(CAN-2004-0837). Another crash was found in MATCH ... AGAINST() queries |
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with missing closing double quote. |
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|
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Finally, a buffer overrun in the mysql_real_connect function was found |
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by Lukasz Wojtow (CAN-2004-0836). |
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|
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Impact |
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====== |
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|
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The privilege checking issues could be used by remote users to bypass |
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their rights on databases. The two crashes issues could be exploited by |
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a remote user to perform a Denial of Service attack on MySQL server. |
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The buffer overrun issue could also be exploited as a Denial of Service |
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attack, and may allow to execute arbitrary code with the rights of the |
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MySQL daemon (typically, the "mysql" user). |
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|
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All MySQL users should upgrade to the latest version: |
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# emerge sync |
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# emerge -pv ">=dev-db/mysql-4.0.21" |
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# emerge ">=dev-db/mysql-4.0.21" |
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|
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References |
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========== |
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|
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[ 1 ] CAN-2004-0835 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0835 |
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[ 2 ] CAN-2004-0836 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0836 |
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[ 3 ] CAN-2004-0837 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0837 |
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[ 4 ] Privilege granting bug |
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http://bugs.mysql.com/bug.php?id=3933 |
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[ 5 ] MATCH ... AGAINST crash bug |
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http://bugs.mysql.com/bug.php?id=3870 |
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|
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200410-22.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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|
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License |
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======= |
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Copyright 2004 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/1.0 |
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