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Welcome to Security Alerts, an overview of recent Unix and open-source security advisories. In this column, we look at buffer-overflows in MySQL, analog, vixie cron, and Kerberos IV; problems with kicq, licq, and kaim; root exploits in NetBSD i386 kernels; and a discussion of insecure coding with PHP and MySQL using a vulnerability in PHP-Nuke as an example. MySQL MySQL has a buffer overflow in the libmysqlclient library that can be exploited using the command-line client, and a bu 
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