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TITLE:
MySQL Denial of Service and Client Certificate Verification
Vulnerabilities

SECUNIA ADVISORY ID:
SA37372

VERIFY ADVISORY:
http://secunia.com/advisories/37372/

DESCRIPTION:
Some vulnerabilities have been reported in MySQL, which can
potentially be exploited by malicious users to cause a DoS (Denial of
Service) and by malicious people to conduct spoofing attacks.

1) An error exists within the "vio_verify_callback()" function in
MySQL clients that are linked against OpenSSL libraries. This can
potentially be exploited to conduct MitM (Man-in-the-Middle) attacks
e.g. via a MySQL server using a certificate with a depth of zero.

2) An error is caused due to missing error handling for "SELECT"
statements containing sub-queries in the "WHERE" clause, which can be
exploited to cause a server to crash.

3) The "GeomFromWKB()" function fails to preserve an argument's
null-value flag when handling geometry values as the first argument.
This can be exploited to cause a server to crash.

The vulnerabilities are reported in versions prior to 5.1.41 and
5.0.88.

SOLUTION:
Update to version 5.1.41 or 5.0.88.

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://dev.mysql.com/doc/refman/5.1/en/news-5-1-41.html
http://dev.mysql.com/doc/refman/5.0/en/news-5-0-88.html

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