Updated telnet packages that fix one bug are now available for Red Hat Enterprise Linux 6.
Telnet is a popular protocol for logging in to remote systems over the Internet. The telnet-server package includes a telnet service that supports remote logins into the host machine. The telnet service is disabled by default.
Prior to this update, the in.telnetd service used the sockaddr structure to store IPv6 addresses. This structure was too small in its size, and as a result, subsequent logins wrote incorrect records about the last login source. With this update, in.telnetd now uses the sockaddr_storage structure, which is large enough in its size to be able to store IPv6 addresses.
All users of telnet are advised to upgrade to these updated packages, which fix this bug.