| MySQL Community Server 5.0.x before 5.0.51, Enterprise Server 5.0.x
before 5.0.52, Server 5.1.x before 5.1.23, and Server 6.0.x before
6.0.4, when a table relies on symlinks created through explicit DATA
DIRECTORY and INDEX DIRECTORY options, allows remote authenticated
users to overwrite system table information and gain privileges via a
RENAME TABLE statement that changes the symlink to point to an
existing file.
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