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MySQL Single-Row Subselect and INFORMATION_SCHEMA Denial of Service
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Secunia Advisory:
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SA24483
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Release Date:
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2007-03-12
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Last Update:
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2008-03-21
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Popularity:
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8,477 views
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Critical:
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Less critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | MySQL 5.x
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| CVE reference: | CVE-2006-7232
CVE-2007-1420
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Description:
Some vulnerabilities have been reported in MySQL, which can be exploited by malicious users to cause a DoS (Denial of Service).
1) A vulnerability is caused due to a NULL-pointer dereference error within the filesort() function when processing certain single-row subselect queries sorted using the "ORDER BY" clause. This can be exploited to crash the service via a specially crafted SQL query.
2) A vulnerability is caused due to a NULL-pointer dereference error when processing certain queries related to INFORMATION_SCHEMA and derived tables. This can be exploited to crash the service via a specially crafted SQL query.
Solution:
Update to version 5.0.37.
Provided and/or discovered by:
1) S. Streichbier and B. Mueller, SEC Consult
2) Masaaki HIROSE
Changelog:
2007-03-14: Added CVE reference.
2008-03-21: Added CVE reference and vulnerability #2. Added additional link to the "Original Advisory" section.
Original Advisory:
1) http://www.sec-consult.com/284.html
2) http://bugs.mysql.com/bug.php?id=22413
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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