REDHAT-BUG-640858
First published: Wed Oct 06 2010(Updated: )
A flaw in MySQL versions prior to 5.1.51 [1] was reported [2] that could allow an authenticated user to kill connections to MySQL by creating a query with the GREATEST() or LEAST() functions having a mixed list of numeric and LONGBLOB arguments. [1] <a href="http://dev.mysql.com/doc/refman/5.1/en/news-5-1-51.html">http://dev.mysql.com/doc/refman/5.1/en/news-5-1-51.html</a> [2] <a href="http://bugs.mysql.com/bug.php?id=54461">http://bugs.mysql.com/bug.php?id=54461</a> This is noted as having been fixed in MySQL 5.1.51, but it does not cause a crash on MySQL 5.0.50 in Fedora 13. It also causes a crash on Red Hat Enterprise Linux 5 (5.0.77) but not Red Hat Enterprise Linux 4 (4.1.22).
| Affected Software | Affected Version | How to fix |
|---|---|---|
| MySQL (MySQL-common) | <5.1.51 | |
| MySQL (MySQL-common) | <5.0.50 | |
| MySQL (MySQL-common) | >=5.0.50<5.0.77 | |
| MySQL (MySQL-common) | =4.1.22 |
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Reference Links
- http://dev.mysql.com/doc/refman/5.1/en/news-5-1-51.html
- http://bugs.mysql.com/bug.php?id=54461
- http://article.gmane.org/gmane.comp.security.oss.general/3627
- http://bazaar.launchpad.net/~mysql/mysql-server/mysql-5.1/revision/3461.1.8
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=453405&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=453405&action=edit
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=645647
- https://rhn.redhat.com/errata/RHSA-2010-0825.html
- https://rhn.redhat.com/errata/RHSA-2011-0164.html
- https://bugzilla.redhat.com/show_bug.cgi?id=640858
Frequently Asked Questions
What is the severity of REDHAT-BUG-640858?
The severity of REDHAT-BUG-640858 is high due to the potential for authenticated users to disrupt MySQL connections.
How do I fix REDHAT-BUG-640858?
To address REDHAT-BUG-640858, upgrade MySQL to version 5.1.51 or later.
What versions of MySQL are affected by REDHAT-BUG-640858?
MySQL versions prior to 5.1.51, including versions 5.0.50 to 5.0.77 and 4.1.22, are affected by REDHAT-BUG-640858.
What causes the vulnerability described in REDHAT-BUG-640858?
The vulnerability in REDHAT-BUG-640858 is caused by the GREATEST() or LEAST() functions mishandling mixed numeric and LONGBLOB arguments.
Who can exploit the vulnerability in REDHAT-BUG-640858?
The vulnerability in REDHAT-BUG-640858 can be exploited by any authenticated user of the MySQL database.
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