Ubuntu Security Notice 449-1 - The krb5 telnet service did not appropriately verify user names. A remote attacker could log in as the root user by requesting a specially crafted user name. The krb5 syslog library did not correctly verify the size of log messages. A remote attacker could send a specially crafted message and execute arbitrary code with root privileges. The krb5 administration service was vulnerable to a double-free in the GSS RPC library. A remote attacker could send a specially crafted request and execute arbitrary code with root privileges.
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