good morning, >>> You should 'yum update' as soon as possible to resolve this issue. I installed the update on C5 and C6 machines, but I do not see any difference in the output of "bash --version". Is that the expected behaviour? C5 returns ---8<--- GNU bash, version 3.2.25(1)-release (x86_64-redhat-linux-gnu) Copyright (C) 2005 Free Software Foundation, Inc. ---<8--- and C6 returns ---8<--- GNU bash, version 4.1.2(1)-release (x86_64-redhat-linux-gnu) Copyright (C) 2009 Free Software Foundation, Inc. ---8<--- before and after the update! best regards --- Michael Schumacher