Multiple vulnerabilities have been identified in MySQL, which could be exploited by malicious users to cause a denial of service or bypass security restricitons.
The first issue is caused by an error when using "RENAME TABLE". For additional information, see : FrSIRT/ADV-2007-4142
The second weakness is caused by an error in the "ALTER VIEW" query that retains the original DEFINER value, which could allow a malicious user to gain the access rights of the view.
The third vulnerability is caused by an error when using a FEDERATED table, which could be exploited to cause the local server to crash when the remote server returns a result with fewer columns than expected.
Credits
Vulnerabilities reported by Martin Friebe and Philip Stoev.
ChangeLog
2007-12-12 : Initial release
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