[CentOS] Critical update for bash released today.

[lhecking at users.sourceforge.net]

> If you absolutely must run an EL4 workload, please do not do it on
> CentOS-4 and instead pay for and upgrade to RHEL-4 ELS as described in
> the above link from February 2012.  CentOS-4 is unsafe .. don't use it
> .. don't do it .. please.

 Or, use the source, Luke. There are official patches for 3.x and 4.x.

 The patched code is so old that even 4.2 patch 48 applies cleanly(*) to
 bash-2.05b, which is RHEL3 territory.

 http://ftp.gnu.org/gnu/bash/

 * minus the patchlevel.h bit