[CentOS] Is there an openssh security problem?

Hello,

is there a security issue on CentOS 5.3 with openssh 4.3? I ask that
cause of
http://www.h-online.com/security/Rumours-of-critical-vulnerability-in-OpenSSH-in-Red-Hat-Enterprise-Linux--/news/113712
and http://secer.org/hacktools/0day-openssh-remote-exploit.html.

Should ssh login from internet on CentOS better be disabled?


regards
Olaf