The remote host is missing updates announced in advisory GLSA 200410-28.

All rssh users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose '>=app-shells/rssh-2.2.2' http://www.securityspace.com/smysecure/catid.html?in=GLSA%20200410-28 http://bugs.gentoo.org/show_bug.cgi?id=66988 http://www.pizzashack.org/rssh/security.shtml

rssh is vulnerable to a format string vulnerability that allows arbitrary execution of code with the rights of the connected user, thereby bypassing rssh restrictions.