Ubuntu Update for krb5 vulnerabilities USN-449-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-449-1
Solution
Please Install the Updated Packages.
Insight
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. (CVE-2007-0956) 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. (CVE-2007-0957) 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. (CVE-2007-1216)
Affected
krb5 vulnerabilities on Ubuntu 5.10 , Ubuntu 6.06 LTS , Ubuntu 6.10